My Boyfriend Works Out With Weights And A Couple Of

My boyfriend works out with weights and a couple of days after a heavy lift session, he got a strong pain in his diaphragm for about 30 minutes. After that it subsided mostly and felt like air pockets radiating into his right side. The intense pain didn't return, but for 3 weeks now, feels discomfort in the diaphragm/esophagus area, intermittent air pockets and now has slight burning sensation in throat and discomfort in base of throat with some drainage. Concerned about hiatal hernia or damage to throat/esophagus? Sudafed, Claritin and zantac not helpful.