Welcome at HCM.
It looks that you are having coccydynia
due to injury
to your coccyx
bone.You should do following to have relief-
-Take rest in prone position(over abdomen).
-You should avoid sitting or putting pressure over hip area.
-Do warm fomentation over hip.This can be done by sitting in a tub of warm water.
-Take a good analgesic
like advil for relief.
Hope this all will help you.
With best wishes.