Running Injuries

[Guest]

I'm a relatively new runner (6 mo) and I've gradually gone from walking to running 10k roughly every other day. Recently, I've started having problems with my 3rd toe, R foot, and big toe, L foot. Both are very sore and look bruised under the nail. The 3rd toe has developed a callus under the nail that is causing the nail to grow oddly -- kind of up. I'm wondering if this is simply a matter of the wrong shoes or if it's something more serious? I've always required shoes with wide toe-space or had problems with ingrown toenails and pain in general. I saw a previous post on Morton foot. I'm not sure what that is but it sounded similar to what I'm experiencing. Any suggestions?