neuritis. you may have impingement of the dorsal medial cutaneous nerve that provides a dorsal digital proper nerve to the big toe.
make sure you are wearing supportive shoes and that there are no pressure points to the top of the foot (from buckles/straps).
i get that in my middle toe, its been goin on 4 like a year nd a half, sometimes i cant even walk on it and have 2 walk on the side of ma foot, do u think i should go 2 the doctor? im only 18 and its like amazingly sore, mine comes and goes azwell