People sometimes have a gluten withdrawal effect after stopping gluten. That may last a couple weeks. If you do a search on gluten opioids you will find articles about gluten acting like opioids on the brain. The good thing about that is you can stop eating gluten (as you have) and recover. It takes time though for symptoms to resolve. You may feel much better in a few weeks and then regress and feel worse also. Celiac recovery can be a bumpy road.
As your gut heals and starts absorbing vitamins and minerals better your tissues can heal. But it is process, not an instant fix.