Hi Kendall,
Here are the symptoms of Hypothyroidism in infants:
Yellowing of the skin and whites of the eyes (jaundice). In most cases, this occurs when a baby's liver can't metabolize a molecule called bilirubin, which normally forms when the body recycles old or damaged red blood cells.
Frequent choking.
A large, protruding tongue.
A puffy appearance to the face.
As the disease progresses, infants are likely to have trouble feeding and may fail to grow and develop normally. They may also have:
Constipation
Poor muscle tone
Excessive sleepiness
Now from personal experience my 16 mo. breastfed baby just slept throught the night for her 1st time 2 nights ago! YEA :0)!!! So that wouldn't concern me. And the dry skin we live in Colorado & as you know it has been DRY, that is one of the biggest complaints I get from my clients is what do I have that can combat their kids dry skin in Colorados harsh climate. Question, are you drinking enough water? I know that has always been super hard for me when I nurse. If you carry a bottle with you everywhere you are more likely to drink it & keep yourself & baby hydrated.
If he seems like he is in pain, not eating well, not wanting to nurse & lethargic I personally would be concerned.
You might want to try some good, baby lotion & oil. I suggest Arbonne ABC oil first, then apply the lotion for long-lasting moisture. My nephew has really dry ashy skin & this is the regimine we set out for him (they live in Colorado & he is also mulatto, dry climate is very hard on his skin).
Please remember you are momma & you know your baby best, if you have any concern, take him in & let your ped. know you have these concerns. I hope it all works out. G.