I have IBS so I know all about how stress can make you sick. I'm in the middle of my mocks at the moment and, thankfully, I've been able to keep it at bay so far.
I'll probably repeat some of what other people have said (sorry!) but here are some techniques that I use:
- Start studying early! If you don't leave enough time and are cramming the night before of course you're going to be stressed. Personally, I find that just looking over things the day before is best for me - just enough to kick start my memory of each topic. Then in the evening before the exam I just let myself relax and make sure that I get a good night's sleep. Another quick look over in the morning and I'm usually good to go.
- For you especially since it seems like it's affecting your immune system - make sure you're getting enough vitamins. Even if it means taking some kind of supplement, just make sure you're eating well and it should help to keep you healthy.
- It may sound stupid, but don't study to hard - you have to take breaks. Go outside, read for a bit, watch some television, anything. I tend to cuddle my dog for quick relaxation
. I think the general guideline is a 15 minute break for ever hour of study? I'm not 100% sure, but just find what works for you.
- Fresh air and exercise are also really important. Even if it's just a 10 minute walk around the block each day, it will help.
If you're well prepared going into your exam period, you should hopefully feel better. Even so, something my mum always says to me is RELAX! Even if you don't do as well as you'd hoped, it won't be the end of the world. There are always different ways of getting where you want to be.
I hope that at least some of that helps!