I Had Been Discharged From The Hospital Yesterday, For Severe

I had been discharged from the hospital yesterday, for severe kidney pain, trouble breathing, with a cathater today I am having a great deal of pain in the groin and penis and while I am trying to urinate. I am still having difficulty urinating even though I have a cathater, the pain is worse than any kidney stone I have ever had my primary care says it is a prostrate problem, doesn't say what the problem is.