Sulfamethoxazole and ulcer

I wish I had bothered to find this site before taking this medication. My doctor prescribed Sulfameth, 1 pill 2x a day for 7 days for a skin infection and wheezing in my chest following a bad head cold. I quit taking this medication after 3.5 days for many of the reasons already described by others herein.

The first day I noticed my heart was "racey" and I had a headache. My symptoms have been getting progressively worse. I feel compelled to eat every few hours (possibly a reaction to feeling lethargic) but food just doesn't taste right. I seemed to crave sweet and salty snacks, which has caused me to retain water. To add to my frustration, I noticed that I seemed to be feeling worse and getting sicker instead of better. My head has been very stuffy and I thought I might be coming down with strep or the flu after feeling like I had an ulcer in the back of my throat. My mouth has been very dry and I am finding it uncomfortable to swallow. My tongue and the top of my mouth is very sensitive and feels raw. Also, my chest wheezing has gotten no better. I have felt very tired and i have no energy to do my normal walks in the morning let alone a full work out. In fact, walking across the room is quite taxing right now. I can't sleep but am exhausted. I was absolutely out of it today, and considered going to the urgent care facility to see what is going on. That's when I discovered that many people have reported similar experiences. Thankfully, I never got a rash or the high fever. This seems like a terrible medication and I will not be completing my course.