There could be various causes for the numbness
in the toes.these are...
can cause it but you ruled it out.
2... Tight fitting shoe can jeopardise the local circulation of blood
3... Diabetic neuropathy
4... Excessive alcohol consumption may cause it
5.. Peripheral neuropathy
6... A neuroma
can cause it
7.. Multiple sclerosis
sometimes present with numbness of toes or fingers.
You require a visit to the doctor for physical examination as well as relevant investigations to find the cause.Treatment would depend upon finding the cause.