Hip,shoulder and finger pain?

[strawberrypip]

Im 22&when I walk more than bout 15mins i get a pain/ache in my right hip and down my thigh. I also get this wen I am in bed or cross my legs I am normal bmi etc and do average/below average exercise(damn car!). I also regularly get a dull ache in my right shoulder often, wasnt sure if was due to driving and high amount of typing due to writing dissertation! I also dont know if its related but when I come in from the cold my finger joints swell up and become white and feel painful to bend. I really want to sort out this hip pain mostly. My mum thinks its cos im a vegetarian and dont get enough fish oil and wear flat ballet pump style shoes but I cant help thinking its something else (obv simply changing my shoes wud be the easiest option!!!!) Appreciate ur help guys if anyone has had similar symptoms and knows wat the hell is wrong with me !!!
Thanks
xxx