Bactrim and drug reps

Just got prescribed Bactrim today for a URI. I have Chronic Fatigue Syndrome and am very sensitive to ANY medications anyway. THANK GOD I had the brains enough to be cautious and only take a 1/2 of a tablet (I am the butt of many jokes in my family because I am almost medication-phobic due to side effects) but I just took a 1/2 a tablet and 11 hours after taking it, I have a swollen face, eyelids, etc., a bloodshot eye, nasal passages are swollen completely shut, have heart palpitations, and my urine is BROWN. Yes, BROWN. OMG I am not taking another pill, it should be removed from the market. You all know that SOME day, we'll be seeing some attorney commercial on TV asking for people that have been injured/death from side effects of this drug......unbelievable doctors are still prescribing this as I believe they've got to be getting complaints about it all the time. I had a friend that worked for a doctor and she told me that SOME doctors push certain drugs to their patients based on the good "perks" the drug reps give their office (lunches for staff, vacations for doctors, etc) shouldn't be that way but is for compensation for prescribing their drugs more than a competitors. Sad. Pray for me no long-term damage has been done.