If his hands were dirty or had bacteria on them, it could cause a UTI infection if the bacteria got into your urethra. That could be why when you pee you don't have much urine. Try drinking a lot of water and cranberry juice. If it doesn't go away within a few days, go to the doc.
It sounds like you have a bladder infection or UTI.. Go to the doctor and if you can't do that.. drink some cranberry juice.