Suggest Treatment For Stabbing Pain In The Head While On Gabapentin
Doesn't look like a trigeminal neuralgia.
Detailed Answer:
I read your question carefully and I understand your concern.
I must say that I agree with you that that type of pain doesn't sound typical for trigeminal neuralgia. Trigeminal neuralgia is typically a facial pain as the face is the territory covered by the trigeminal nerve. It may radiate somewhat to other locations but not be only there. Even the previous pain you describe (originating from the back of the head) doesn't sound like typical trigeminal neuralgia, more like occipital neuralgia (doesn't change treatment much though). This neck pain sounds even less like trigeminal neuralgia.
On the other hand I do not think it to be indicative of a dangerous condition so you do not have to overworry. Might be a flare up of fibromyalgia or may be an neck arthritis related pain (I would try if nonsteroid antiinflammatory medication like Ibuprofen has any effect). If the pain persists though another visit might be indicated and possible neck imaging.
I remain at your disposal for other questions.