@andy_sweet – Mid portion or insertional?
I’ve had the latter for best part of 11 years, although managing it having cancelled operations 3x now (every surgeon has their own opinion and method…all seemed severe!). Insertional is often mechanical and caused by heel spurs / haglund deformity – so worth getting that checked if it is…because the underlying issue isn’t going to go away.
I’ve tried so many things now – much of the treatment prescribed from my physios (and I have tried a few!) seems to be generic. Loading, eccentric dips.
The best physio I found also worked with me to strengthen all of the calf muscles, other leg muscles, running gait and stride length. Mine took a while to settle, and from time to time flares again – but I know how to manage it and back off the running a bit.
Interestingly cycling doesn’t hurt it – no pain at all. But not sure if it doesn’t aggravate it as it always feels better after a week or so off the bike!