I used to heal quickly. As a cross country runner through fields, farmers roads, over and around obstacles, I would injure myself on a regular basis. A strain here, an ankle twist there. Within a day or two I would be back on the road.
Eventually, after twenty plus years of abuse my body said enough of this running stuff and turned my ankles and knees against me. So I moved on to other things. Hiking, yard-work, walking and just about anything to stay active. A few years in a hard external martial art, and eventually to Tai Chi.