I went for a 16km run (easy - moderate pace, 6 min a Km) the other day and felt so sick after I had to lie down until my boyfriend brought me a slice of bread to eat so I could get up, which helped. It seems to just happen after the longer distances. I have a feeling it is something to do with being on the pill - (Brenda 35-ED) since pregnant women seem to need to snack a lot to stave off nausea. Could that be happening to me?? When I first went on the pill I vomited a few times but then it went away. I have not really had any problems since. I do seem to feel nauseous when I am very hungry but never used to get it after exercise until now. I seem to be eating constantly because I am training 6 days a week now, and it always makes my stomach feel better.
My other question is, if I get so hungry after a 2km swim that I need to have a large meal, how on earth do you get enough nutrition during the entire Ironman? Can anyone give me some advice on nutrition throughout the whole race? I have done a lot of research but I don't think a gel every 45 minutes and clif bars will be enough. Do you have a favourite snack which has worked for you?