Abby, Good!!! I have a walker. I hate to use it but it is much safer than canes. You still have to use arm muscles but at least there's less of a chance of falling.
That collapse episode you described sounds scary. Has anyone checked your potassium when you are bad? There is something called Hyperkalemic Periodic Paralysis. Since they haven't definitively figured things out yet, they need to be thinking of any possibilities.
http://www.nlm.nih.gov/medlineplus/e...cle/000316.htm
I hope you will get some help from your docs. The cause matters but so does helping you in the meantime!!!
Annie