Over the past two weeks my sex drive has sky rocketed to 4-5 times a day sexual impulse, i.e., the desire to have sex with my girlfriend or masturbate, from it's usual high 2-3 times. However, with an increased sex drive I've noticed that after peeing I don't feel like my bladder is all the way empty, and sometimes I have to wait around for my body to release one last tiny amount of urine. when it comes out it usually just falls from the urethra instead of having a strong stream behind it.

It can't be an STD because my girlfriend and I have been in a monogamous relationship for about a year.

The urine isn't discolored. the most color it gets is yellow after not drinking lots of water .

The semen is white and also not discolored.

Any suggestions as to what it may be?

I'm 26 , exercise regularly, and there's no pain when urinating.