My most uncomfortable symptom isnt my twitching / spasms.Its trying to walk on my left foot. I can sit all day and feel zero symptoms related to this. But one trip to the store and after 15 minutes my foot feels like its burning up, swollen, and icy cold ... all at the same time.With the most predominant sensation of "swelling" and heat. Its extremely uncomfortable, and walking makes it worse.Standing at the checkout line for only 60 seconds gave me near instant relief ... and i ws good again, until i reached my car when I was feeling the burn/freezing cold / ache again.*beep* me off honestly. Im not 86 years old. But i feel like it when that happens. Im not really clear why the above person doesn't have Spasicity. I know that what I have is very much like it. An extremely tight, rigid left calf. Its not exhaustion from twitching. Its a knotted up feeling in the muscle that only periodically relaxes. I believe that is spasicity, but given I've been experiencing this stuff for a month and my MRI is clean, i'll just assume BFS'ers can also get spasicity. Not just MSers.