I'll tell you what's going on... you're having the time of your life!
Some medications can cause this to happen and it's neither good nor comfortable, from what I have heard. Speak to your doctor about this.
If you find out what caused this let me know?
You should ask your question on the Urology Forum, here on Medhelp there is one.
Usually, they say that is it lasts over six hours, that is when you need to worry, but I am not sure that you should go by such a general rule.
Antidepressants are a major culprit in causing this. Is it painful?
Anyway, try the urology forum, and DD, you need not meds but something else. maybe a photograph of a woman would help?
(LOL)
You are hopeless!
KAT