Any advice ??

Hello everyone, so I have really bad shoulder & neck pain. Top of shoulder is swollen. It’s hurts to move my shoulder. And I have really bad low back ache including my legs are hurting so bad to the point I can’t walk and while I’m sitting they hurt so bad😭. I don’t know what to do. I haven’t gotten my period it’s two days late. I was pregnant 2 months but i ended up miscarrying. Idk if I’m pregnant again that’s what causing all this. Any advice who’s been in a similar position.. I can’t tell you the pain.