Hi, this is my first post, so give me just a minute to get it all out there.

I started Phentermine on 10 May, 1/2 a pill for the first week along with 5 days of protein only (10 oz daily). I lost 6.8 pounds (-4.2 fat, -2.6 muscle) that first week. The second week, I started the Dr. Office's 1200 calorie diet with a full dose of Phentermine (37.5 mg). I didn't really notice any side effects, a faster heart beat and more energy, but nothing I'd consider negative. I habitually lean toward a low carb diet. Although this worked for me in the past (2003, lost 29 lbs in 30 days on Atkins) it doesn't work for me any more apparently. So, second week I lost 2.8 lbs (-3.6 fat, +0.8 muscle). Third week, I did almost the same, not really doing the carbs part in the diet. I gained 1.4 lbs but it was -4.4 fat, +5.8 muscle and my water was up 4.2 lbs to boot.

Other details, I do 30-min of elliptical in the mornings, P90X lean in the evenings, and on days I'm not working out, we've been working in the yard -- serious work, like building, digging holes, etc. that actually burn calories. Also, before I started with the Dr. Ofc, I had them run blood work, my estrogen is fine, but my testosterone is low... like supposed to be 150-275 and it's 16!

Last Thursday (weigh-in day) I actually started eating right off the Dr. Office's diet sheet--to include the carbs. Weigh-in isn't until tomorrow, and I think I've traded fat for muscle again, which is good. An over all loss of 8.2 pounds over a 21 day period with a decrease of 12.2 lbs fat and a 4 lb increase in muscle isn't bad. But I just feel like I'm not making enough progress.

My home scale reads 199.0 (dr office is a 5-6 pounds lighter but I track everything using home scale). I've been dancing around 199 for two weeks now and haven't broken through....

Any suggestions?