@cladinviolet you should be seen by a physician to be certain it is not a serious condition. It will be a relief for you if your are worried. Let me say I also have muscle weakness and neuropathy. Prior I was very active. I spent many hours at a time in the gym. I believe what you are describing is the relationship between the muscles and nerves. Neuropathy involves nerve damage. With the improper nerve signals, the muscles will not move correctly and therefore cause the sagging of the skin. Can you pump up your muscles or have sore muscles after a workout or exercise? The degree of neuropathy can cause imbalance issues. We simply no longer have the nerves for our brain to sense our location and surroundings to make use of our muscles for proper balance. Without our sensors our bodies are incapable of normal activities so we do the best we can. Physical therapy is an option which worked well for me. It was not a cure. To see what is best for you give it a try. Everyone is different. It would require patients as the exercises would have to be done many times before seeing any benefits. Having been active before should make it easier on you. Do you know the cause of your condition? The condition can become worse if the cause is not stopped, i.e. the nerves will continue to get damaged. You will become more comfortable with the more knowledge you gain so be ready to ask your physician for information. Wish you well.