Quote Originally Posted by KnottedYet
There are a couple threads going right now about Morton's Neuroma. Might want to check that out as a possibility.

Do you have a callous under the 2nd or 3rd "knuckle" on the sole of that foot? Could be a sign of a dropped metatarsal head. (flattened metatarsal arch, which causes all sorts of pressure-related problems)

A simple pair of $5 met arch pads could help your problem if it isn't due to the width of the shoes.

Do you pronate? That can also cause pressure issues. Do you wear Superfeet or something similar? ($25-$30 replacement insoles)

No need for expensive custom insoles if Superfeet and met pads will do the trick.
Hmmm. When I run, I sometimes get blisters on this foot (my right) under my big toe, but not the other foot. The only callouses I have on my entire foot are at the widest part of my feet -- you know, where the bunion goes in the future I don't feel anything on the ball of my foot that's noticeable. As far as pronation goes, I do tend to run on the inside of my feet, especially when I get tired.

I do have similar problems in my snowboard boots with my toes falling asleep; in my boots I have the added enjoyment of arch pain, too. Was going to try a heel cup and possibly replacement insoles, but the ski season ended before I realized it was worth my while to investigate the problem

Thanks for your help!