C'mere dude - I used to get little explosions of pain in my left heel when running, and then when I was in a bookshop I read a bit of 'Born to Run' which goes on a lot about running barefoot
Mrs. egg_ slags me off about this - "you read a bit of a book in a bookshop and now you think you know something?"
Anyway ... the book seemed to be saying that "good" running shoes make your feet weaker cos they're protecting them too much, and that puts more pressure on your other joints. The other exercise I do regularly is skipping, so I gradually started doing that barefoot to strengthen up my feet (can skip for half an hour barefoot now no problem), and - get this - I started *pretending* I had no shoes on when I'm running, which actually affects the way I run (shorter steps, and I'm inclined to land on the flat of my foot rather than my heel)
... and now I don't get pains in my heel anymore. YMMV, but I'd say it's worth a read of that book anyway
I was getting really bad foot problems and assumed I was running too much. Was about to give up when I got an Xmas pressie of some new walking around Adidas sneakers. They had amazing supports in them, which I hadn't looked for in years. Problems were fixed almost overnight.
So running was just highlighting a problem that was already there, wasn't the cause.