What the heck?

Last week I was down 27 lbs.

This week I am only down 20 lbs.

I had a hearty meal and dessert last night as my weekly treat. I am not eating more or differently.

How the f did I gain 7 lbs. i could see 2 or 3 but 7????

Week 3 of 7.5 dose. Started 12/7.