They're probably Fordyce spots, or oil glands. They're totally normal, and you've probably only noticed them because you're anxious about oral herpes for some reason. You're probably also checking it out a lot, and touching your mouth frequently, which may be irritating them.
https://www.healthline.com/health/fordyce-spots Fordyce spots are enlarged oil glands, so yours may not be as significant as those in the photo here, but you can sometimes feel oil glands.