About 7 months ago I was in hospital for brain surgery. Around 5 months ago I had what I believe to be the flu, and my legs were very sore and stiff. After this I developed severe twitching in my legs and face, and eventually areas like my back and feet. I used google, and convinced myself I had BFS. However, around two months ago I noticed large dents below both my knees, and very visable atrophy on both my outer legs near at my hamstring, however I have noticed no weakness. Is there anything that could give me twitching and atrophy without weakness? I am very scared.