Please help! Last week I could not urinate, doctor said I wasn't emptying my bladder. He did a blood, urine test and ultra sound. Put me on macro bid in case of infection. Now I can't stop urinating, 1 hour after I drink. I will urinate a little, 15 minutes later I urinate a tinny bit, 15 minutes later same thing. He did a cat scan and all is well. What is going on? I am so depressed