I can hardly walk 😭😭 I have a pain and the only way I can describe it is like an on going cramp that…

I can hardly walk 😭😭 I have a pain and the only way I can describe it is like an on going cramp that starts from my right side and goes around the bottom of my bum cheek and down my leg has anyone any ideas what it could be it's been there for a few days but day I could barley get up to go to the bathroom :( x