"i haven&#039;t weighed myself yet because i&#039;ve only been taking phentermine for 4 days now. i am starting to have the dry mouth, but my main concern is that the past 2 days i&#039;ve had off and on numbness/tingling in my left arm and left lower leg. i plan on calling my doctor tomorrow about it. it has me kind of nervous, but other than that i actually have more energy and i&#039;m not hungry at all."