I have had this bladder pressure which comes and goes. Its weird as I notice it sometimes depends if I'm sitting and stand up it does away, if Im standing and I feel it I sit and it goes away. I have been to a urologist and gynocologist and I had a sonogram and utrasound done and so far all test come back fine. They did find small amount of blood in urine but urologist stated it was too low of an amount to be conserned. Any idea?