In reply to Pritchard:
Hi
Both my partner (see link below although picture link is gone -- but you don't want to see it) have had/are having achilles probs linked to boots and mountaineering.
http://www.ukclimbing.com/forums/t.php?t=395231&v=1#x5698325
My partner finally had surgery in Sweden almost a year ago and is still rehab’ing the heel.
Ironically, my heel is doing the same thing! Although I've always had knobbly heels (calcaneous) so that makes more sense.
Ditch the boots. At least temporarily. You don’t want to risk further aggravating them, while you sort it out.
My previously great-fitting boots just don't work for me and I've hunted around for some that don't aggravate my heel (Mammut Monoliths have plenty of space for me).
In all of the boot discussions I’ve seen on here Manta’s have often been found to have an aggressive heel. I found that too. Although they don’t work in the forefoot for me so have never been a serious contender.
Tendonopathy is a dull ache that often comes on after the event. Bursitis produces a sharper pain (and often swelling) that is more instant. Our current thinking about what went wrong for my partner is that pressure from boots (and bone shape, and old age: 40), caused bursitis and some tendon wear. The bursa eventually went solid (and now has been surgically removed). This swollen and eventually solid bursa further aggravated the tendon so that it became in very ill health. And the tendonopathy that resulted then became the long term and potentially unsolvable problem.
So in short: if you are getting a dull ache in the tendon that appeared to come on with these boots. Stop wearing them. Then google for eccentric calf exercises for Achilles tendonopathy (there are some self help exercises that should help keep the tendon in better health).
I know what you mean about crying. Getting out in the mountains means everything to us. My partner did it on crutches after the op. And she used Tevas with waterproof socks both before and after.
So take care. And best of luck.
Bruce