What Causes Twitching In The Involuntary Muscles?

Hi, may I answer your health queries right now ? Please type your query here... I have involuntary muscle twitches throughout my body. I injured myself last year. I was plowing and the next day, I couldn't get out of bed. My left side became useless for a few months. Ignored it and it seemed that everything was ok then the twitches/pulsing came into play