From what i can make up from your describtion it liiks like small fiber neuropathy to me.
Do you this stifness on top of one or both feet?Did the symtomes in both your feet develop the same way?I am having simulair problems right now.The toes of my left starting get numb including the a part of the fore foot and I have this strange coldness in my left calf.
I think its a good idee to write a detailed report what is happening to you.this is something that I should also do myself