I have had TN in the past (years ago).  Today I am now feeling a painful/odd sensation in the left side of my face, near my temple, under my left eye, into the top of my head and in front of my ear. My left eye is squinting without meaning to and it is uncomfortable to eat and talk.
This may be mild trigeminal nerve inflammation. Nerve inflammation has high recurrence rate, so you should start in treatment as early as possible. Start with vitamin B12 injection once every 3 days and oral Gabapentin 150 mg three times daily.