Hi Mark and welcome. Unfortunately I don't know a lot about finding out about food allergies - your doctor would probably have a better idea about how to find this out. I do know there are blood tests they can do to check for Celiac. One thing you could try is to do a trial of a gluten free diet for a while and see if you feel any better. There seem to be a lot of people who are sensitive to gluten. You can find gluten free products in health food stores or health food sections of regular grocery stores. Make sure you check labels though because gluten is in a lot of things. I've thought about trying this myself to see if it makes any difference.
I give you a lot of credit for being able to manage going to a university - it can be hard enough when you aren't dealing with fatigue. I'm glad you are able to do some yoga - I'm going to try to get back into some light exercise after the holidays.
I'm glad you joined us and I look forward to hearing more from you. Take care
As HM2 said, a doctor will be able to determine your allergies. Here at the States, they do injections in the arm. It's a pain in the butt, but it's the best way to determine what you're allergic too. You'll know right away too. When they inject things like... mold, dust mites and wheat into your system, your arm will swell in that area if you have an allergie to it.
This is a test you should look into!
Suffering from Adrenal Fatigue (confirmed by Saliva test)
6000mg of Vitamin C daily
800mg of Vitamin E
1000mg of Vitamin B5
100mg of vitamin B6