Last Month I Had A Uneventful Root Canal. These Last

Last month I had a uneventful root canal. These last few days I have a sensation or feeling in my mouth sandpaper...or when you eat too much pineapple. I take Levithyroxine for Hypothyroisim for 8 years and last weeke I had 2 Xanax at separate time due to a anxiety issue that my doctor treated. I just switched tootapste because my husband bought Colgate whitening I used it 2 times this week and thought that may be causing this