on my way home from school today, i turned on the A/C and my car shook so much i thought i got rear-ended. i turned it off and it shook again. turned it back on, and it shook. turned it off again and it still shook. i didn't turn it on for a while (i normally drive with it off) and it didn't shake anymore. does this happen to anybody else?

 

maybe belt is to tight,making engine struggle a bit more