I am 28 yrs old, woke up about 2 am this morning with an intense feeling to urinate. While urinating i was ecperiencing burning and slight abdominal cramping and also realised i had blood in my urine, i have gone back to sleep yet because i feel the urge to go like every 10 mins or so, every time i do go, the urine is in very small amounts and i still see the blood. Very worried, was should i do?