Seeking Advice for Intense Facial Pain During Migraines

I was wondering if anyone related to/knows about something I experience. I have chronic migraines, and the pain typically is in my head and sucks but can be managed. however, about once a year I randomly get intense, burning pain in the lower half of my face (from the bottom of my eye socket down, along my jaw, in my teeth, and radiating to my ear) on one side of my face. it’s extremely uncomfortable, worse than my usual migraines. it lasts for about 2-3 days, and over the counter pain medication doesn’t touch it. the first time I had it I went to urgent care, no sign of sinus issues. went to the ER, and they told me it was an atypical migraine, which is what I have usually. I’m confused about why it presents so differently than my usual migraines, and I’m really worried about it being nerve issues, knowing my mom has trigeminal neuralgia (though she also has MS). if anyone has experienced something similar, it would help me feel less anxious about it. it’s just so weird and I worry about experiencing it again.