I like the frame you have now! Remember, weight gain comes and goes to different places of your body, and what you used to have back when you were 120, may not be the same figure two three months later.
If you concentrate on a little yoga; three times a day mush and k9, you'll be just fine.
If you need a work out body, I'm here to attend and ensure your reps of mush and k9 are completed