I started having puffiness on the soles of my feet 6 weeks ago. Doctor treated me for edema which did not help. Now he is treating me with neurontin. This AM I have discovered the numbness is spreading across the entire feet up into the lower legs. Any thoughts on if this condition is a nerve problem or a reaction to the meds. It is a scary situation and a doctor visit would be a week away because he is not available this week.