It sounds like you are herxing - sorry.
It's clear you are treating Babesia and head pressure is a hallmark symptom of it.
Please consider increasing your detoxing - maybe you can find a few things to add here:www.tiredoflyme.com/detox-methods.html
Buhner recommends 1/4 - 1/2 tsp Kudzu tincture 3x daily to help with this symptom. Herbs can be safely taken alongside abx.
Hope you feel better soon!
Moderator - Lyme Forum
Jul 14 started what proved to be inadequate treatment ala PCP day after nymph deer tick bite
Sept 14 met LLMD - clinically dx'd with Lyme due to Bells Palsy - confirmed via CDC positive WB
Feb 15 transitioned off abx and started full Cowden protocol along w/LDN
Aug 15 started transition to Buhner's Lyme, Babesia & Bartonella protocols
Nov 15 stopped LDN - 98% healed!!