Is there any other muscle disease besides myasthenia gravis in which your muscles gives out but recovers with rest. Since my early 20's I have had muscles spasms in my neck and back but I managed to keep it at bay by message my back and neck a lot. In 2001 I had thyroid cancer but no other problems with that. In 2006 I started having problems chewing meat because my mouth would get too tired. I had barium swallow done. Everything was fine. In 2010 I started having episodes where my breathing would stop. I crawled to get my son. Oxygen was little low when I got to hospital. They gave me meds but found nothing wrong with my lungs. This episode happened again the next week back to hospital same thing. I have always exercise. I got a exercise bike for my birthday. I started exercising and my legs started going numb. I started falling. When I went to doctor I had weakness in hands and leg. I had emg test and passed it, nothing has showed up in blood work. I have episodes where I start talking like I'm tonged tied. I can not chew meat and at times I can chew fruit or nuts and for a week I could not eat anything and lost 9 pounds in one week. Christmas eve my right arm got tired from moping and I had to rest it for three hours. Christmas afternoon I was reading to my son and my words kept being slurred so I went to ER and they admitted me because they wanted to make sure that I wasn't having a stroke. The neuro doctor there said they were going to keep me and run test but he believed they would not find anything because he believes that I had mg but it would not be found until I have muscle biopsy have had blurred vision, double vision especially in right eye. There have be periods when I am out of breath and will not be doing anything. When I walk too much my legs feels heavy. When I talk too much mouth gets tired. my shoulders and arms gets heavy. I have not been able to write well for a long time. I start out writing fine and then it turns to scratch. I have problems fixing my hair because my hands and shoulders gets too tired. The day after I left hospital my right eye was blurred all day. so this is what's going on so could it still be mg or does other muscles disease fits this description?