[grace2007]

i started phen today, about 1 hour after i took it i felt funny for awhile. i felt really light, i was worried for a little bit but a little later i felt fine . i had energy untill about 4:00 pm then i felt like i hadnt taken anything. i am taking one pill a day 37.5 mg. am i only supposed to feel it during the day? or does it take time?