donsdatter,

Welcome to NeuroTalk. I am sorry to hear you are struggling with head aches.

Have you tried acetaminophen and aspirin combined? 1000 mgs of each taken together may offer relief. It is my go-to mix. Gabapentin is an odd choice for head aches as is Lyrica.

Have you been doing any icing of your neck? Even though the cervical MRI and CT don't show a problem, you may have an injury to the occipital/C-1 area. It can cause pain and tension to radiate behind the ears and beyond.

Inflammation in that area can cause quite a mess.

You can make a moldable ice pack by filling a zip lock baggie with 1 part rubbing alcohol with 3 parts water. 15 minutes on, 30 minutes off and repeat as often as possible.

I would try a few more ways before the lumbar puncture, etc.

What is you blood pressure like? Sometimes, a bp med like a beta-blocker will help.

I hope this helps.

My best to you.