I am a 29/F, 5 3 and about 170lbs. I have given birth to two children with no complications and have no significant medical history. For the last 6 months whenever I sit with my legs crossed for an extended period of time and I go to straighten my legs, I have significant pain and stiffness in my left knee. What could be causing this?
Hello, I read carefully your query and understand your concern. Stiffness of the knee can result from poor posture. I suggest :-Switch sitting positions often.-Avoid crossing your legs or ankles.-Stand up frequently.-Take short walks. Hope my answer was helpful. If you have further queries feel free to contact me again. Kind regards!  Chat Doctor.