So Basically my husband went to the er For his foot because he had a staph infection and i had got him some food for us to eat , later on i noticed he was getting tired idk if it was because hes been walking on his hurt foot or what but he mentioned he was tired and i saw his heart rate drop more than once from like 48 beats per minute & it was flashing yellow .. i woke him up because i was scared i was so scared i was having increasing heart rate for alittle bit trying to get to him , anyways it would flash yellow for awhile and then go back up to like 50-60s he mentioned that he has heart palputations .. I did go get the doctor when i saw that it was flashing yellow , i dont exactly know what it means , can anyone explain to me what happened ?!