I think you are describing Fordyce's condition, where you can see the little yellow oil glands against the pink background of the lip. This is common and unimportant. Sometimes it looks more prominent than others, for no special reason. I don't know why you're suddenly noticing them, or why it's making you so self-conscious. You need to have a doctor check you out and convince you that you don't have herpes or some contagious disease, and then forget about it.
Best.
Dr. Rockoff
Dr. Rockoff