I get a pain in my heels in the moring when I first get out of bed. Almost can't walk for about 5 mins. I thought it was from running. But then I got it the day after doing heavy calf raises. I have strong and big calves 18 inchers
I think is is from streching them with a lot of weight. Kind of hyper extending them on purpose. I think It stretches my achillies tendon, and that ties into the heel. But I don't know. Any physiologists out there know these things?? It is not a huge problem but it is weird.
Bob

Bob