Thanks, sarahL2491, As an ex-army medic, and a victim of a kidney stone years ago, that was also my first thought.! It is my daughter who has other symptoms of having MS. Thought Lower back pain might be connected to MS.!!! She has no insurance, and she had 1 MRI done, that was negative. I am hopeful she will join medhelp, also.!!!!!
It would depend on where your flare occurred, what part of your body that is.
I know lower back pain is often asociated with kidney stones