just started forxiga and was doing well for two weeks ,lost 5 lbs and bs down to 6 however have started with severe low back pain ,just called at the docs as i thought may be i had a UTI it was clear and he said i had muscular back pain and it was a known side effect and to stop the tablets i am dissapointed has anyone else had this problem ,do you think they will let me try again ,i am in great discomfort tho