I have pain in my left arm right below my shoulder around my arm on my muscle. And it gets worn out and tired real fast. If u am driving i cany hold my arm very long it gets really weak. And my right leg it gets really weak. If I'm doing difdernt things it gets real weak. And i have to sit down. This all just started about a month ago with my arm. Then after that i noticed my leg getting weak. What could this be don't have insurance so i that's why I haven't went to the doctor. Doesn't do it all the time.