i've been having numbness in my right thigh over the past 3 years.  Maybe once a year at most.  When i get up to walk, i immediately fall.  I feel like there is no limb there at all.  The feeling lasts for about 30 sec.  The past 3 weeks, the symptom has returned.  I've fallen 3 times with no warning.  I have new symptoms also. Tingling in both legs, arms and hands, cool feeling like an IV is running through my right leg and muscle spasms.  I'm not over weight, i'm not diabetic and i don't have thyroid problems.  Also there is no pain or itching. 

I went to have an MRI/MRA today and waiting on results.  Just wanted to know if anyone else has experienced these symptoms.