Walking problems

PeteH

advice please?
I have always had problems with walking due to spasticity and take baclofen to controll it, but just recently i am having some new problems that i have not experianced before.
I walk with leg braces for support (unlocked for walking but locked for standing), recently i have had a couple of occaisions when i have been walking my leg muscles just seem to stop working and i collapse on the floor.
I can get almost streight back up again so it only happens for short periods but it is very worrying and embarrasing for me, does anyone else have this problem? if so how do you cope with it? any advice would be usefull.
Thanks
Pete.