Confused...

From pig to twig?

I'm really confused about this week. I went to the YMCA this morning to weigh myself thinking I had surely gained a little bit of weight, but no. I have been eating twice as much as the past couple of weeks, and doing the same amount of exercise but somehow I have lost two pounds. So now I have to prepare myself for another lecture from my doctor tomorrow. Last time she was scolding me for only gaining three pounds and now I've lost two!!! I need some serious help figuring out what to eat to help me.