Hi, Me And My Boyfriend Had Sex Last Night And

Hi, me and my boyfriend had sex last night and since this morning he's been complaining that his right balls sack is hurting and he's walking a little different. When we were having sex he ejaculated a lot and in a way that he's never done before and it was a lot of sperm. His balls look lopsided is there something wrong him? Should I rush him to the hospital? Please help