I am only 25, and I used to be cold all the time, I sweat more now gluten free than I ever did. I used to wear sweaters but not I have dwindled my collection and everything. I even get very toasty at night sometimes, they aren't night sweats nor do I get soaking wet, but sometimes I put shorts on or take all the covers off which is unusual to me.
The anxiety I was suffering from pre-celiac all stemmed from situations that were caused by the celiac, getting sick in public/finding a bathroom, being too sick to leave the house, wondering what was wrong.
A few weeks gluten free and I was seeing that anxiety disappear.