I'm coming back to jogging after a 3 year break after I had a prolapsed disk. I'm in week 5 of a 0-30 min beginners programme at the mo and am having some shin pain in my left leg, + my left arch aches a bit. Before I started the walk/run I went to get a new pair of trainers fitted. I was told that I'm over-pronating in my left foot but not my right, so on the shop assistant's recommendation I bought a neutral pair of shoes. However, I have been assuming that the two problems are linked. Could I wear an orthotic in one shoe and not the other, or would that be completely crazy? I've been so happy with progress to date and now feel completely gutted that I may have to ease back. I'm also very overweight at the moment so I worry that this is putting more stress on some weedy muscles! Any suggestions would be massively appreciated.