Talk to your doctor. There can be all sorts of reasons why and a blog can’t answer that. HOWEVER, if nothing is obviously wrong, ask your doctor if you can try a children’s multivitamin with iron. Don’t play around with vitamins or your child’s health. Ask your doctor. If your child’s doctor won’t respond to a quick email or phone call on a simple question like this, think about getting a new doctor. Seriously.
A friend of mine just told me that within 3 days of taking a daily children’s multivitamin with iron, her four year old was sleeping through the night for the first time in YEARS. When she asked some friends who were pediatricians about it, they all said something to the effect of “Oh yeah, that usually works,” and she thought “YOU KNOW I HAVE BEEN SUFFERING AND YOU DID NOT TELL ME?!”
My friend told me this in the midst of a month-or-so-long issue of my 9 year old waking up in the night more often than he ever has before. I decided to try a basic children’s multivitamin I found in Whole Foods (see picture below), and bam! He was sleeping through the night again. I waited more than a week to write this post to see how it would work. Also, there was one day he forgot to take it, and he was restless during the night and got up once (but went right back to sleep). I know it’s not hard science or anything, but that was my experience (and that of a friend) and if your doctor thinks it is okay, it’s worth a try.