I have an on and off problem for almost 3weeks now. I get an unmercifully pain in my right hip/groin when I get up from sitting or if I go to walk after being standing, I have to grab the wall or table to stop from falling. It's like I just can't put any weigh on my leg at all. I know it sounds a bit mad but I don't actually have any pain before and it is not an ongoing pain, it feels like as if my leg doesn't fit and I shouldn't put weight on it. I work in a call center and spend a lot of time sitting at the desk, I work shifts and am about two stone over weight. I smoked twenty cigarets a day up until two months ago, if that helps with a diagnosis.