i have been problems with both my feel for quite awhile...hot then cold feeling. i am not diabetic, as i have had a full panel done back in february/march. i have been considered overweight, and with that the doctor recommended phentermine, which i take once a day, and i have lost 28 lbs. i feel great, more energy, and have started walking aprox 2-3 miles weather permitting. my feet issue is so odd...like you would take a string around your finger and cut off the circulation. i am just stumped. have consider thrombosis, but was told not, maybe peripheial neuropathy??/