"i&#039;ve been on belviq for five days. the first day was hard. i was dizzy, hot, and had a headache all day. but i&#039;ve been good since then with only slight dizziness. yesterday i started taking 2 pills and i haven&#039;t noticed any difference.  i still feel hungry all the time. will it work better if i take it on an empty stomach? i don&#039;t think it&#039;s worth it so far."