I've been reading old threads on sore achilles tendons, but could still use some help, please. My issue is that both my achilles tendons (not the heel) are sore *at other times* like when I go up and down stairs. It's been going on for many weeks, but I think it's getting worse over time. Honestly, I didn't even associate it with biking because they DON'T hurt when I'm pedaling. But I realized when I was on Sheldon's site that it might be because of poor pedaling technique, tried to read up more on the topic here and elsewhere, and still feel confused. IDK if I'm pedaling wrong (no clips, so where should my foot be positioned on the pedal?) or the issue is something with the bike or something else. Or, since they don't hurt when pedaling, does that mean that it's not caused by pedaling and the timing is coincidental?
I've been riding for about 2 months now, short distances of usually 3-6 miles, on my teenager's cheap mtb that is a little small for me (while I continue to shop around for one for me). So maybe the size of the bike is a contributing factor? The seat is up pretty high, but my leg still has some bend in it at the bottom of the pedaling stroke. I do wear my regular gym shoes and it has often been cool in the evenings when I ride -- but certainly not cold. Like 50s-60s ºF. And I do stretch out a bit before and after I ride, although the only one that I feel works that area is one where one leg is in front around a 90º angle, and the other is stretched way out behind me where I feel the stretch down my calf muscle (not specifically in the achilles tendon area, but close).
Thanks for any help!