hip pain

i get sharp pains in both my hips, more current in my right hip. its at the back and feels like it is travelling from the top of my hip the top of my buttox. i am healthy weight for my height.
This started when i was 15(now 22) when i was working as a kitchen porter. after a busy night usually weddings, it would hurt to walk and if i sat down i would nearly have to crawl up the stairs to go to bed. it stopped for a few years, i would only get the pain now and again. But for the last 8 months or so i get it nearly everyday. it doesnt hurt as much, but i can kinda feel the pain. i had clicked hips as a baby. would this be the cause of it?