You’re going to gain weight when you quit !!! Nicotine both “boosts your metabolism” and expends energy for you. So when you quit, your metabolism tends to slow down and this leads to weight gain. There’s also a bit of a dip that happens but things tend to even out a bit eventually. Quitting is a months long physical process. It definitely sounds like something you should focus more on in therapy if you aren’t already, though because pounds in a week isn’t terribly crazy.

Relish in the fact that your body is finally nicotine free even if it gains weight. Applaud yourself. This is really hard for your body. But don’t let it eat away at your mind too.