toe numbness

This isn't really a tri-specific question but I thought maybe someone here would have some ideas on it.  Both my big toes have gone completely numb.  I think it's because of my ski boots.  I just got new custom fit ski boots.  They are made to fit my foot exactly, which is great for skiing but was causing a lot of pressure on my toes when standing still or walking in my boots.  I went back to the store and they shaved out a bit of the liner to give my toes more room.  It feels much better now, but weeks later my toes are still numb all the time.  It's not that big of a deal, it's just really strange.  Is this something I should be worried about, or I should just let it go?  I'm a major hypochondriac so this kind of stuff worries me!