My brother is traveling in South America. His wife reported that about two weeks ago, he had some sort of spell. Severe pain in his chest , into his right arm. The doctors there said it was heat stroke. They perscribed pain pills and sent him on his way. She reports now that when he walks 5 to 6 blocks, he needs a rest or a nap, if he eats too much, he´s very uncomfortable, slight pressure in his body, he cannot handle any stress, or he’s in pain around his right arm and chest. Does this sound like heat stroke? Does he need toseek better medical attention?