Cramps in my sleep? Help!

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Yesterday I had some bleeding after a Pap smear. That has finally stopped and I've (kind of) started to relax. Last night in the middle of the night I was woken up by a sharp cramp in my lower stomach - it honestly felt like a gas pain, but I couldn't fart 😳 it passed and I was able to go back to sleep. This morning, I have a pain in my back but it's not my lower back, it feels like a muscle pull almost in the middle of my back. I have very very very light brown spotting when I wipe still but it's almost gone.

I know I'm being a hypochondriac but should any of these be cause for concern? I don't have the cramps anymore and I didn't wake up again from them. Now my back just feels stiff