Yes, I have experienced what you are going through with muscle weakness. It seems like each time I have a relapse, it get worse. But thankfully, I have always regained "most" of my strength back. I do remember how frustrating it was the first time... and how difficult it was to even type. You fingers just not doing what you what them to do... dropping things like your keys, hairbrush, glass.... and having to concentrate on every little thing you try to pick up. I hope this passes quickly for you. You are in my prayers!