Question: I travelled overseas a month ago from a warm to a very cold climate and noticed during a long day of walking in the cold weather that my left leg was hurting. By that evening I couldn't put any pressure on my feet and assumed I'd walked too much. When resting the pain seemed to dissipate however when I walked, even short distances, in the cold I noticed sharp pain in my knee as well as pain around my hip area (top of my thigh, exact location is hard to identify but it seems to be joint related rather than muscular). Since returning home I have noticed that when I walk around, especially on hard or artificial surfaces my hip is quite sore and I am unable to walk without a limp in that leg. Also when I lay on my side I feel uncomfortable pressure and occasionally pain in that hip and knee. I have now rested for a good week and have been back in warm temperatures for almost two weeks so the start of the pain was five weeks ago. I have also always had a bit of trouble with my feet and legs but always recovery after sufficient rest periods. What could this be? I am 24 years old, female, and although it doesn't run in my family at all as far as I'm aware, I am concerned about arthritis and similar conditions. I seem to have a fairly weak immune system (my whole life I've been prone to colds - at least every 1 - 2 months since childhood) and do suffer from anxiety and eczema if this is relevant, however I have no other health concerns that I'm aware of and have a fairly healthy lifestyle (good diet, moderate exercise, don't smoke, only drink on occasion etc).