I felt like crap during a long run (and consequently cut it short). During the first two miles I noticed two circles in my field of vision. They merged together and disappeared but they lasted until about mile 2.5 of 4. Its like if you stared in a camera flash and had those bright lights floating in your field of vision. That’s what they were like. I wasn’t dehydrated. Anybody know what those were or have had them before?
I’m pretty sure you were abducted by aliens, probed, and had your memory wiped of everything but the final residual glimpses of the retreating spacecraft. You should get some rest, you’ve had a busy day.
Only three times I get that symptom:
Dehydration
Low phosphate
Migraine headaches
.
I get similar flashers. I’m pretty sure mine are ocular migraines. They last about 15-20 minutes and I feel exhausted when they clear up. Not a big deal, except that they make me tired.
An unusual presentation for “flashers” from my n=1 experience with detached retinas but I would get an optometrist appt asap. If you start seeing a shadow across your field of vision I would get to an ER on a Sunday. There are in-office laser surgeries that can help retinal issues. The longer you wait the more invasive it can become. Hope its nothing.
It is likely an acephalic migraine. Your visual disturbance is called a scintillating scotoma. These are classic migraine auras.
One eye or both? No following headache?
Cataract(s) halo?
I felt like crap during a long run (and consequently cut it short). During the first two miles I noticed two circles in my field of vision. They merged together and disappeared but they lasted until about mile 2.5 of 4. Its like if you stared in a camera flash and had those bright lights floating in your field of vision. That’s what they were like. I wasn’t dehydrated. Anybody know what those were or have had them before?
I dunno if it was one eye or both. There were two circles so I guess both. I looked it up but only found stuff for older folk regarding that.
+1
I get the same things occasionally. I get the same fatigued symptoms often without the flashers if I work out too soon after eating. The feelings of fatigue and lethargy reduce me to a walk or soft pedal. After about 10-20 min they clear up and I’m good to continue on. Annoying but no big deal.
+1
I get the same things occasionally. I get the same fatigued symptoms often without the flashers if I work out too soon after eating. The feelings of fatigue and lethargy reduce me to a walk or soft pedal. After about 10-20 min they clear up and I’m good to continue on. Annoying but no big deal.
That’s exactly what happened. If it happens again I’ll see a specialist, but until then I just won’t have a bowl of cereal right before running.
Thanks yall
I get the same thing. Actually happened this morning again after a long time without suffering from them. Before I used to get them all the time and always felt like crap when it did happen and its always 10-15 min. into my run. I’ve tried running through the symptoms but they get so bad I can’t see shit so I always stop and use it as an opportunity for a light stretch and they go away after 3-5 minutes.
I’ve narrowed down my cause to eating before my runs. When I run on an empty stomach, it never happens but today I had a light snack (brown rice cake with PB&J) and they came back. My completely non-scientific and probably stupid explanation is that my stomach takes blood away for digestion.
So try running on an empty stomach and let me know if it helps you.
Dehydration. Same thing happened to me when I first tried out low-carb fueling and diet. Carbs typically carry more water with them than fat.
Actually, it’s due to the combination of high insulin (post meal) & reduced insulin resistance (once exercise ramps up, your muscles start transporting glucose in faster). Your brain then starts panicking about the plummeting blood glucose, so clamps down on your ability to exercise.
Good thread here on the topic: http://forum.slowtwitch.com/cgi-bin/gforum.cgi?post=2966064#2966064
Actually, it’s due to the combination of high insulin (post meal) & reduced insulin resistance (once exercise ramps up, your muscles start transporting glucose in faster). Your brain then starts panicking about the plummeting blood glucose, so clamps down on your ability to exercise.
Good thread here on the topic: http://forum.slowtwitch.com/...post=2966064#2966064
Thanks a ton for the information. I’ve been trying to cut glutens out (which means carbs are very limited) and other measures to minimize insulin spikes, so a sugary cereal would do that to me… That makes sense.
Do you mean flashes? Or are you getting exposed to on the run? Maybe your just too damn hot and the women can’t help but rip their clothes off when you go by?
Actually, it’s due to the combination of high insulin (post meal) & reduced insulin resistance (once exercise ramps up, your muscles start transporting glucose in faster). Your brain then starts panicking about the plummeting blood glucose, so clamps down on your ability to exercise.
Good thread here on the topic: http://forum.slowtwitch.com/...post=2966064#2966064
Thanks a ton for the information. I’ve been trying to cut glutens out (which means carbs are very limited) and other measures to minimize insulin spikes, so a sugary cereal would do that to me… That makes sense.
My first guess was hypoglycemia. Why it’s happening exactly is what needs to be sorted out. I could just be a one time thing or it could be something to watch out for. I’ve been bedeviled by it since I was a preteen. The worst I had it was when I ate a hostess cherry pie and then ran about 60 minutes later. I could see silverish spots flashing in the peripheral and my vision was fading. So I stopped and then totally passed out on the grass. I have found for me that if I take a gel immediately before I start running it wards it off. Also, running in the morning on an empty stomach usually ends up in disaster about 30 minutes into it.
Ocular Migraines I get them as well. They seem to go in cycles where I will get them for a month or two then it can be a year or two until I get them again.
Many folks get bad headaches after the 20’ of visual stuff ends. I normally don’t get a headache but feel more sensitive to light and noise.
Find what triggers them for you. For me it is lights often in my peripheral vision. I get them when I’m on the bike on a sunny day. I always wear sunglasses. I have discussed this at length with my eye doc. He said it is vascular in nature and nothing you can do once they start.