I would think that kind of rapid weight gain would have to be mostly caused by fluid retention. So the trick would be to get rid of the excess fluids. I recently had to put on fifteen pounds per doctor's orders, but it took me a month to do it, and I was trying hard.

I had the help of a very good nutritionist here on NT to help me with my weight problem. And that was the monkey, Miss Curious... If you ask, I'd be willing to bet she'll have some good advice for you.

Wishing you the best with your problem...

Idealist