Have you checked the possibility that you might have chronic fatigue syndrome, sometimes called Epstein Barr Virus. It is a very real illness but sometimes difficult to diagnose. You can search it out on the internet and also try to find a doctor that specializes in chronic fatigue syndrome. You also sound as though you have a weekened immune system. Try to find a professional who specializes in vitamin therapy. A daily regimen of vitamin C along with some other vitamins might help to boost the immune system & help you to ward off some of those colds. No matter what don't let it get the better of you. Good luck.