I'm sorry for the loss of your Mom, that's heartbreaking and so hard.
Disclaimer-I still don't have a diagnosis, so everything I have is from a slightly different viewpoint.
I have been experiencing severe spasticity in my legs and hips for a couple of years now. When it first ramped up, I was terrified that I'd somehow blown my knee out and would need a knee replacement...in my 30s. My legs gave out and I hit the floor hard. Alone. In my bathroom getting ready to hop in the shower. No one else was in the house, and I lay there trying to get back up for a few minutes that seemed like years
I don't live in Virginia anymore, but I grew up in SW Virginia, in the heart of the Blue Ridge Mountains. I remember how bitterly cold the cold can be in that area.
I still struggle daily with the spasticity, and cold definitely makes it worse. I noticed that any type of compression also makes it much worse, very fast. I had to change my entire wardrobe to just help alleviate the extra symptoms.
I can relate to the embarrassment... I have fallen at work, in parking lots, and in a couple of stores. I've used a cane at work, where people know me and I feel emotionally safe, but I haven't graduated to being comfortable using it in public. So when I go to a store, I park right beside a cart return, grab a cart, and use it as a makeshift walker. I know it may be silly to care, but I hate showing weakness in an environment that I don't know anyone and I'm by myself.
One thing that helps me, when I can, is to get my feet at the same level as my hips. So I usually go to the couch and sit pretzel style. If I don't have that, and it gets really bad, I'll fake a yoga stretch on the floor to just allow it to release for a minute.
I'm wishing you all the best, and hope you find something or multiple things that help. 💜