It hurts!

Woops not kept up with the blog.

Have ran a couple of times since I last wrote. First time was ok.
Second time was bit of a mess. Decided to take the hounds with me and to be honest it wasn't too bad but I went a different way so its hard to judge how it went.

Im having a bit of a problem after I have been running. My foot hurts underneath and then my calf will hert.
I know its the big tendon thats hurting but I don't know how to stop it. Do I not run for a while :-( or its it my trainers or the way Im running? Its not so bad on the days I don't run and therefore don't wear my trainers!!
I'm not running naturally as Im trying to run slow as advised but it makes my legs ache and my ankles so I will have to do more research.