What Causes Severe Pain In The Hips?

Yes Im having sevre pain in my hops mosly my right im 49 when im in 99 seeyed position I cross my right leg and my knee is pointing in the 2 oclock and I pussh on it and is so tight I caint move it downward. I went to a dr and he gave me ashot of cortizone it wor k for in month it starting to stiffen again the pan is in te hip whe the oint is bu it aiso has pan tha goes all arnd where my leg and hip meet i dont know what it could be but i have stonosis of the spine and allways hurt in my hips it took it showing me that that aweful pain i had was in this pain for 20 some yrs i went out a sunroof in a wreck when i was 17 and had scars on both hips it may go back to then what im tryig to ask is what could i t be?