HG, when I was having problems with my Achilles the lateral aspect of my ankle, just behind the ankle bone, was very tender and swollen. In fact, when I ran my fingers over the area it sounded like I had bubble wrap under my skin and I was popping the little bubbles. I made an appointment ASAP to see my podiatrist. He put me on a strong antiinflammatory (Mobic), put heel lifts and arch supports in my shoes and recommended I continue seeing my chiropractor and massage therapist. I iced my ankle as often as I could as well.