Trimethoprim :: Unable To Bend My Swollen Knees

Took 2 tablets on the first day (a friday) went to sleep and then woke up the next morning unable to bend my knees. Assumed i had maybe slept funny. Kept taking the tablets but by monday morning my knees were a lot worse, slightly swollen, couldn't get up and down stairs, couldn't kneel on them and they also would give way without warning, basically had to walk with straight legs not good when i've got a 15 month old baby to look after.

Spoke to the doctor and he asked me to go in and he checked my knees and said to continue with the trimethoprim as it could be a secondary infection in my joints which can occur when you get another main infection. He gave me some strong Ibuprofen and some other tablets to take at night to stop the Ibuprofen from causing an ulcer in my stomach. So took these but had to stop as they made me feel nauseous and very dizzy (later told that this is a common side effect of Ibuprofen). Anyway got to thursday and finished my last 2 tablets. Woke up them Friday morning to absolute agony in my knees, so bad i couldn't even drive the car, which i had been struggling to do as had to run my 4 year old to school every day etc. Had to get a lift into the doctors and i saw a different one this time and he said that it seemed a very strange coincidence that i got this while taking the tablets and that it was probably an allergic reaction to the tablets. (at this point the UTI hadn't cleared up but did a couple of days later!!!) He sent me for blood tests to make sure that the pain in my knees etc wasn't something else and said that if i was still in paint in a week's time to go back. Well a week later my knees were 50% less painful so went back and saw yet another doctor who said my blood test results were ok, so definitely an allergic reaction and would make a note on my file not to prescribe again. He said that it could take a while for my knees to come right. well its not 7 weeks later and they still aint 100% right. They still ache when i get up, hurt when i kneel on them and lock when i stand in 1 position for a while, like when im washing the dishes etc. They are also still giving way occasionally. They feel incredibly week, like i've lost all my muscle round my knees so guess when the pain is a little better ill have to start doing some exercises to strengthen them up again.