I went to an urgent care facility today because I was hurting last night in my back on the right side and then woke with a dull ache in lower back. Today when I started going to the bathroom to urinate it started bothering me. The Doctor said I had blood in the urine and thought that I was trying to pass a stone. He gave me some medicine Flomax to take but I'm scared to take it because of all the side effects and warnings. I am a woman and it says it is primarily taken for enlarged prostate. I have been trying to drink large amounts of water to pass the stone, but it just seems to trickle out.