Lisa,
<<He has been sticking his tongue out a lot tonight, something he
does not normally do.>> Itchy palate from thrush?
Just had a case like this (minus the relactation) it turned out to be thrush.
The baby's cheeks were peeling, blisters on the tongue.  It took a while to
figure it out that it was yeast but classic other signs appeared in a week.
Cleared up as soon as it was treated.
Marie Davis