Varying time frame
The time frame of each bout of pain lasts from just a couple of seconds to several minutes. If every time you feel pain on your face, the time frame differs and isn’t usually definitive, then it is probably a symptom of trigeminal neuralgia. Some episodes may even go on for days, weeks, months, and even years, of feeling constant pain on the face. While some people may have times when they don’t experience or go through any pain.
Pain in parts controlled the trigeminal nerve
There are certain parts of the body such as the jaw, gums, teeth, cheek, and lips that are supplied by the trigeminal nerve. Sometimes even the eye and forehead areas are also involved. Experiencing constant pain in those areas at the slightest touch could be a symptom of TN.