I am a male, 74 years old And recently had knee replacement surgery, one week ago. I have sudden increase in the number of times I have to urinate. Sometimes more than once in an hours time, at least every hour and during the night I get up at least six times. The urge comes on quickly and I barely make it to the bathroom. I am taking Oxycodone/Acetaminophen, 325 mg, Asprin, 81 mg and Celecobix 200 mg. , Fouoxetine 20 mg, Simvastin 80 mg, Finasteride .5 mg. I had been taking Testosterone but have not taken it for two weeks. Can any of these medications be causing this sudden change?