[handcycle2005]

I was a runner from 1976-2004 when i was disabled in a traffic accident.
I also coach high school cross-country and track.

if anyone has any questions, feel free.

VitoVino, I'm concerned about your Achilles.
A few questions:
How long have your tendons been hurting?
How high are the heels on your running shoes compared to your street shoes?
Are you stretching?
Are you icing the tendons?

I would recommend you not run until you're pain-free.
If cycling is pain-free, you can do that. Swimming and water running are other options.