Hi, im a 35 yr old male. I have been noticing a very small amount of bubbles in urine (even if im sitting). Not foamy but just some very tiny bubbles some times in little groups. You kinda have to look but they are there. I had a cbc and cmp blood test last month to ck my kidneys and liver to monitor medication I take and everything was fine. Do I still need a urine test? should I be worried?