Hi Rick,
I feel for you. It takes time to recover and we all heal differently. When my treatment was over, waiting was just overwhelming. It has been 2 years this week and it just seemed to go in cycles.
I encountered blisters still after treatment and occasionally still today, and I also got Thrush. I had no clue what was going on, the changes that were happening to my mouth, throat, teeth, eating, etc. I also, had white spots on the sides of the tongue, then in the middle of the tongue, one time it was black, (it was from coffee and tea) I ran to my surgeon, so afraid and it Thrush.
Also, my tongue, gums, teeth are easily stained by stuff, so I mostly choose non colored things to put in there, but it was real bad right after treatment, it has gotten better and it will for you as well. You are doing fine and it is understandable for you to ask, please, ask away. I feel like I have a weight lifted off my shoulders for finding this message board with good folks who speak very openly about things they are, have experience. I feel great today!!!
You will be fine & God is with you.
God Bless
Patricia