Color me confused.

I know I've talked about this one on here before. Since my last relapse (about 2 years ago now), I have this "thing" where when I put my weight/center of balance on my left side, or I reach with my left arm to do something (such as get a plate out of the cupboard), I feel like my left leg's "buckling" under me, or folding.

This came on during relapse, and took a good 3-4 months (or possibly more) to start to fade a bit. It has never completely gone away since it came on 2 years ago.

In the last month, it's back, only this time it's much worse than before. I don't fall (thankfully!) and I can walk without any issues. The worry is that, because the feeling I get from it is so pronounced, I could 'follow through' and tumble from feeling off-balance.

It's gone from a slight buckling/folding leg sensation to now being that feeling one gets when they're almost asleep, and suddenly feel like they're falling/dropping, and they bolt up or wake up otherwise with a jolt.

What on earth is this "thing" called?! Is there a name to it? Anyone else had this wax and wane (I know others have mentioned having something similiar happen).

It's not a new symptom for me, it's just a symptom that's progressively become worse over the last month.