"i&#039;ve been on belviq one day and my body went crazy. i&#039;m experiencing a cooling/menthol sensation throughout my entire body. it&#039;s weird. vaginal pain as well. i&#039;m so uncomfortable. i just want this out of my system. the drug is probably a great one that will do what it&#039;s supposed to but for me it&#039;s making me crazy. i&#039;m not sure if i gave my body enough time to &quot;detox&quot; off phentermine. i took my last pill yesterday and started belviq today so i&#039;m not sure."