horrible lower back pain?

[somegirl]

i had asked a question but now my symptoms have changed soo anyway yesterday i started out my day with a tiny tiny back pain and by the end of the day i had to lay in bed it was horrible and all day today it was horrible too, but i had work so i had to take pain reliever and go. Now im home and it hurts terribly.. also yesterday when at the end of urinating it tickled/tingled a little bit but now it doesnt at all right now its just my right lower back that hurts terrrrribly i cant take the pain right now im going to take something to ease it but what can it be?? my water is very light, but that might be because ive been drinking lotssss of water? i dont know but does anyone have an idea to what this may be the start of? or is it simply just back pain??