Yes..with these pics it seems to be oral lichen planus
Its a chronic condition which has relapsing remitting course. It can be asymptomatic or at times associated with burning sensation or pain depending upon the type of lichen planus
Usually there are trigger factors which should be eliminated for treatment to be effective
Next Steps
Donot worry....take a dermatology consult, get a definitive diagnosis and ask away your queries.
Health Tips
Tip - Use a bland white colored toothpaste and toothbrush with soft bristles.
Good luck