"i&#039;ve only been on phentermine 37.5 since june 23, 2015.  my starting weight was 220 at 5&#039;5&quot; and this morning i weighed in at 214.8.  i take it every morning as soon as i get up in the morning with 1-2 cups of water.  it does make me really thirsty (so i have been drinking more water) and the first few days, my sleep was so off and i felt really jittery. i have definitely noticed that i don&#039;t eat as much. even if i try to eat a lot, i feel bad so i don&#039;t try much :)  i try to attend boot camp 1-3 times a week.  i can&#039;t wait to see results within the next week and days to come."