I Fell On Mid Back Area- Trying To Sit On

I fell on mid back area- trying to sit on a bench, but missed. Side of bench hit my left side - right below my rib cage. I can’t walk or stand from seated position. I can only lay on back. I am using a heating pad. It hurts when Austin take a deep breath- but doesn’t hinder my breathing. I have had back issues/pain in that area for a year and a half.