It's been nearly two years and I am still experiencing the same symptoms of burning head pain!

Head pain, in one particular spot almost burning/knot sensation. If I touch it, it hurts and if I pull the hair in that area it hurts. Touching can also make me feel sick!

MRI brain- normal
CT brain- normal with mucocele in sinus (front left so no relation) although I have got alot of post nasal drip
MRI cervical spine- Small foraminal disc bulge C5-C6 causing nerve compression downwards to left arm which I do get pins and needles in (GP says unlikely to cause pain upwards)
Eye test- normal
Amitriptyline 10mg- no help
Amitriptyline 20mg- tachycardia in the morning so I stopped as this terrfied me
Gabapentin- too scared to try as causes horrible symptoms and I'd rather get to the cause of the pain!!
Physio- Doesn't think neck issues are causing it as each session he trys to exacerbate the pain to no avail

I am going back to see GP tomorrow in the hope they'll refer me to Neurology but I think he'll try and make me take Gabapentin and I am really reluctant.

Does anyone have any experience with this medication as I am terrified???