Weird sensation in legs...please help
Hello, and thank you for taking the time to read this. For the last couple of days I've been experiencing a strange crawling sensation in my legs. Not every part of the legs is affected, just certain areas or "patches". It is occurring in both legs, from thigh to calf. It's not severe, just annoying. There is no pain, no cramping, no weakness or numbness. I am walking fine and can bear weight down on both feet normally. Sometimes the crawling is accompanied by a chilly feeling, like the legs are cold.
It's usually at its worst when I am seated, and sometimes migrates to my butt. I've been at my computer quite a lot the last couple days and have a large chair in which I tend to sit cross-legged. When I am standing and walking, the sensation are much less and sometimes vanish completely.
Me being a hypochondriac with five formally-diagnosed anxiety disorders, I am obviously thinking the worst...like MS, ALS, brain tumours, etc. Apart from the usual symptoms stemming from the anxiety itself (faintness, fast heartbeat, hyperventilating, etc), I am experiencing no other symptoms physically at this time. But I am still very worried that something is wrong, that I'm in the "developing stages" of something ominous. I've never taken the best care of my body; I'm not overweight but my eating habits are terrible (junkfood, desserts, etc), I've been severely lacking in sleep time (thanks to my new iMac that I have trouble tearing myself away from at night) and I've been sitting for long amounts of time (tinkering with computer again...d'oh!)...so I'm trying to convince myself that the circulation in my legs just sucks at the moment and that's what's causing the crawling, chilly sensations. Needless to say, I'm having a hell of a time believing it.
Do you think this is something I should go to the doctor for? Might I start to develop more symptoms that signal something terrible is happening? Is it really poor circulation only, nothing more? I need some reassurance. I am visiting my psychiatrist this Thursday but until then I know I'll be crapping my pants with worry. Any & all answers are greatly appreciated. Is something awful happening to me?