Just wondering if anyone has advice about this...

Annalie hasn't been gaining much weight. She's breastfed and still eating every 2-3 hours at 5 months old. She had been sleeping through the night, but for the past few weeks she's been waking up 1-2 times to eat. I was wondering if maybe she's not getting enough calories. I'm not sure where I read this, but I think I remember reading that people with Ichthyosis burn more calories per day. Do you think that maybe she's not gaining much because she's burning through most of the calories she gets per day?

I was planning on waiting until 6 months to introduce solids, but I'm thinking about calling the ped or derm to see what they think about starting her now. I might buy some rice cereal to see if she's even ready.

Anyone go through this? Any advice?
Mom to Annalie born 7/17/09 (Mild Lamellar) & Hadley born 3/20/06