I must agree with @maggykriti. I would definitely attempt to get a second opinion. Your traumatic experience was extensive. How does he (GP) expect you to “get on” with nothing to support you as you adjust. Cardiac issues are extremely stressful and just winging it on your own will not help you at all. Nothing against GP’s but some just don’t understand the kind of stress you are dealing with. I would discuss this with your cardiologist or find a Electrophysiologist. Best of luck on your recovery journey.