On heart problems

Questions on how Doctors check out a person. I am referring to the fact they apparently do not have any means to check out the electrical system of the human body. I still wonder if are trained wrong. Step by step is not always the answer. Maybe too much Psycology and too much they are Gods. Things always seem to have to go bad before they know what to do or the direction to go. Maybe they need to be Practising engineers before they become doctors. An engneer has to to learn to think not just go step by step. An engineer has think out the process before he can build well maybe if the Doctors had to think out the Hunam body before he treated the individual- he might come up with the solution to the health probems. I am going in circles but have been trying to bring out a solution to chasing health problems. I do not always know the words but sometimes I can figure things out. These things keep coming to why I have my problems but guess I do pretty good for my age and experience. Don