So basically here's the short story:
I started working as a cashier and began standing long hours during the day. About half way through my shift during the first couple weeks I started having really bad pain in my feet and lower back, mainly due to wearing dress shoes that weren't meant to be stood on for hours at a time. Well, now that it's a couple months later I noticed that when I sit down I sometimes get a weird vibrating/buzzing/twitching sensation basically in my bottom butt/bottom of my thigh that lasts for a few seconds and then subsides.
The thing is, when I stretch it and pull my knee to my opposite shoulder, I can induce the vibration/buzzing to start and last for a few seconds - does this sound like a pinched nerve or piriformis syndrome? I'm hoping since I can make the vibrations/twitching happen by stretching my leg in a particular way that it's nothing too serious, but I was wondering if anybody had similar experiences. When I'm standing, I rarely ever get these muscle vibrations/twitches. Thank you for your time.