I have been feeling a bit of frustration also. I started Phen almost three weeks ago. I was so excited the first week after losing 6 lbs, but the past week and a half, I have lost nothing! I know everyone's body is different. I don't want to give up too soon, so I'm trying to stay motivated by reading about everyone else's successes and how you all encourage one another.
I had a few side effects early on, but the majority have subsided. I do have serious constipation issues and wonder if that is part of the problem, but for now, I'm going to stick it out.