Three days ago I bumped my left lower rib at the bathtub reaching a facetowel. Two days after, I developed pain and SOB when I breath deeply.the doctor at my floor where I work said, take Motrin and it will be better in three days. I took Motrin and went to sleep Yesterday after a night work, its fine but I was picking up heavy plants and groceries.In the afternoon Ithe pain came back,slepttwohrs before I went to work again. i saw a swelling at my left side below my left collar. could this be a muscle pull or strain?