My thanks to both of you for posting this interesting and helpful conversation. I'm getting more wobbly as well. What a great word to describe it. I'm still wearing Brooks Running shoes because they come in women's in my size - most shoes don't and men's shoes are too long in the foot from the heel to the metatarsals and usually too wide. I'll check into the other shoe types you have mentioned, John. Walking any distance is a problem. I'm close to needing a walker or rollator. I have long-Covid as well and have lost a lot of muscle because I simply can't do the reps needed to maintain much muscle. My previous PT and I agreed that I was able to do so little that the PT sessions were not of value. I now have a different PT who specializes in neurological conditions and we're making progress w/in my ability to do the exercises and I'm excited to find some strength slowly returning. Finding this new PT, to whom I was referred by my neurologist, has given me much encouragement - if one door closes, it might just be the opportunity to find a new door opening that leads to something better.
Sending my appreciation to you both for sharing your experiences as we work to make lemonade out of life's lemons.