I think it is way past tendonitis now, but at one time it seemed to fit. So don't underestimate an Achilles injury. Back in 04/05 I had tendon issues working, and taking off La Crosse knee boots I was wearing seemed to hurt more. That went on for a while,.. then a blow-up. Podiatrist had me stay off it, which was optional anyway, taking Celebrex and using an orthotic insert. That worked, with only mild flare after lots of walking for another decade+. That was until this August, when I stepped down off a log on that foot while directing an excavator in a stream. Didn't feel right, but not bad and kept working. It was sore that night. Worked the next day (I had equipment in a salmon bearing stream) and that night it went to hell. NSAIDs, ice and staying off it and it was improving after a few days. About a month later and I was back to where I couldn't put weight on it. MRI finally showed a 30% tear and repeated scarring and bone growth related. It obviously isn't going to heal by staying off it and I'm now waiting for authorization for surgical procedure. I've resigned to it, as I missed a whole season and don't want that kind of thing to keep happening.