Hips problems with horses and SO

Maddie • Just trying to make it through life one skip at a time
Hey guys I need some help fellow horse back riders especially so I've been having Issues with my hips especially my right one when ever I have fallen off its usually my right side ... I've had everything done doctors can't seem to find anything but occasionally in bed my hip on my right cramps and locks up or riding it cramps and I can't seem to relax my pelvis into my dressage saddle or be able to pull my leg away from the side from my hip it hurts... Any ideas how to get it stronger to help me it... It tends to POP a lot to the point you and my SO can hear it...