I bet you are very glad to be home!
Good you went to the hospital and can now feel at ease.
Wierd you had syptoms for so long with no stinging but like anything there is always variations to syptoms etc - just a pain you couldnt have known earlier to get it sorted before it got so bad.
Oh well hopefully all will be fine now and the kidney ultrasound will come back all clear.
So do you feel heaps better?