Hi Charlie,
Congrats on wanting to hike the AT after your by-pass surgery. I can’t offer any medical advice but I can share with you my personal experience.
Before hiking the AT I had heart surgery (a pacemaker) to treat my frequently slow heart rate (below 40 bpm). Sometimes my heart would stop completely for a short while before starting up again. After the surgery I felt very defeated and thought I would never be able to live an active life.
A couple of months after surgery I decided to try going on a long walk. Once I allowed myself this possibility (which seemed like an impossibility not too long ago), I found myself in Baxter State Park at the beginning of the AT. Hiking southbound it took 7 months (from July 1st to almost February) to reach Springer Mountain.
The AT became a wonderful and healing journey for me. I felt better walking in the woods instead of being at home.
I wish you only the best on your recovery. And on your hiking journey, wherever life’s path may take you.
John L
John L.