I have, for the last 4 years or so seem to be getting bladder infection after bladder infection, no matter how much I clean, sometimes without using harsh soaps, they keep coming back and the pain seems to be getting worse and I'm finding it harder to hold back from going to the washroom. I often try to urinate right after sex as well as I've been told it helps in preventing the infection. Doctors keep telling me I'm fine and send me home with some pain killers, but they always come back...every now and then I find blood in my urine as well, is this something relatively normal or could there be something more serious going on?