Trigeminal neuralgia

Hi everyone I have been getting this severe pain in the side of my head and then my face and eye feel strange. The pain is so severe in my head it is a excruciating shooting pain. I have been told it might be trigeminal neuralgia. But the pain doesn’t start in my face. The pain is in the side of my head. I am on pregabalin 400mg a day to increase to 600 mg if needed. I am still getting the pain. Any help or advise please ? Thanks

Just in case, do check with the dentist too.