Hi there. This could be due to herpes zoster
or shingles, lyme disease, multiple sclerosis, metabolic causes like hypo and hypercalcemia, hypo and hyper magnesemia, guillain barre syndrome trigeminal neuralgia , food allergies, panic attacks, hypoglycemia etc.
You need to seek a neurologist who would want certain blood tests like CBC, calcium, magnesium, TSH, glucose, BUN/creatinine, HGA1C, ESR, vitamin B12, chest xray. EMG, NC study. Treatment would include treating the underlying cause.