Welcome lavi,

You have landed in a soft place. I truly hope someone can give you some direction. Have you looked at CRPS or some of the neuropathy syndromes? Did you have any trauma or even overuse? Being a CRPS sufferer I really hate to point anyone that way, what is on the Internet is heavily slanted to a doomsday approach which is NOT the norm so if you look into PLEASE, PLEASE don't panic. 80% of people with CRPS get better over time. It is just an idea based on the started in the toe and then moved from there with burning pain statement. The Budapest Criteria is the most utilized so maybe take a look at that.

I hope you find relief soon! I am sending Healing Love,
Littlepaw