What Causes Tremors And Chills And Body Pain?

my body was shaking uncontrollable all over and cold all over (it was 75 degrees in the house) went to bed with extra covers, this did not held for a long time. body hurt all over. when I tried to get out of bed my legs could not support me and I went to the floor and could not move, somebody helped me back in bed laid there for couple hours, was able to get out of bed with a lot of pain. two days have past and fill better can you tell what cause legs to go limp?