I have been suffering from constant nausea (no vomiting though) for the past 2 years accompanied by dizziness. I'm also very tired (even during the off season), which makes training even harder. It seems I've tried everything on the planet and I'm running out of options. Sometimes the nausea gets so bad swimming that I have to stop my swim workout and can't function for the rest of the day. Any suggestions what this could be caused by and how to fix it?
I also have severe headaches all day as well as neck pain. :(