I am an average weight, average height, well fit 15 year old male. I have recently had trouble urinating. I have trouble starting going, after i start going i am fine. I also feel like I have to go bad and then have little urine. I have no burning and no pain. It takes me about 30 seconds sometimes to get anything to come out. I started haveing this problem about 2 weeks ago.
Is this normal? Please help me.

Also, I take 2 different antibiodics daily for my acne plus there is no pain like i said before so i dont think it is an infection.