I was diagnosed with MS in Feb of 2011. My symptoms started with tingling/numbness in my feet that worked it's way up my legs and into my groin area. The symtoms have subsided in my legs and groin area, but the tinglin in my feet has never gone away. I've also been experiencing daily tremors and twitches. Within the last week, I've been experiencing pain behind my knee and last night I felt a bulge. It is not an abscess, but more of a swell. I didn't do anything physically that would have casued and injury and while slightly overweight I'm not obese. The pain increases when sitting or standing too long. I don't have any visible varicose veins and have no history of that. I've tried elevating my leg while sitting and stretching, but nothing seems to alleviate the pain. Has anyone else experienced this? Thank you so much for reading and sharing any thoughts/ideas.