Very depressed at the ripe age of 52 after succeeding at long distance tri’s and ultras such as Ironman and OMM to have required a RTHR (posterior) in February this year (my last run was a marathon in July 2019 when I was a limpy painful mess at the end). Now 5 months on I am running (jogging) up to about 5 miles, cycling about 25 miles and swimming when possible. All amazing stuff given the major surgery but hard to believe I could ever return to more than recreational exercise. Limitations factors for now are fatigue and stiff/ aching from hip/ low back but I guess this may improve further. How do others get through the stiff/ achy layer? Any tips? And how do you avoid the fear you might be wearing out the bionics given the general advice not to run etc?