It is a nerve problem and doctors do not address that for some reason, they just say its a nerve problem and if there is pain they give pain meds which is not helpful. If you have the tightness on the bottom of your feet, like shoe leather that has been wet and is shrinking it is because of deadened nerves which have to be restimulated to work properly and if they do not work the problem gets worse end result would be surgery which is not guaranteed either. nerve and blood stimulation is what helps and to find out where this problem is coming from if it is your spine, then decompression helps, but a slight warning--the problem gets worse before it gets better with the treatment, you start feeling more pain for a while, but that is a good thing as it means the nerves are waking up once again. Your best bet is to find a doctor--or chiropractor--which is what I have--who deals with nerve pain/neuropathy, and sad to say they are not readily available it took me a few years to find one. My last results showed good progress but I will have to continue with it .