I train very hard, and have been doing so for 30 years. I've always had bad sinuses, and I always seem to get a bad sinus infection/upper respiratory infection combo at least once a year. Usually when this happens, I just train through it. My training regimen is intense but short. It's usually comprised of about 15 sets, most done to failure, in under 30 minutes with weights 4-5 days a week, and go to the track to do a combination of sprints (100, 200 & 400 meters) for about 45 minutes. The problem is, this yearly combination of symptoms will upwards of 6 weeks. The symptoms are: runny nose, headache, bronchitis, earache, red mucous-filled eyes, and sometimes even diarrhea. These symptoms are so varied, so I can only assume it is from a general weakening of my immune system from over-training, or an allergy attack followed by some secondary infection. I get an attack every year around the same time, usually around June. Anyone ever experience this or know someone who has? It really frustrating because eventually I end up taking at least a week off from training.