If you are talking about being sensitive to jolting or jarring like when riding in a car over a bump or other same sudden movement, I have had this problem for years. My brain is just very sensitive.
I also have some mild disk issues in the C-3 to C-6 area but nothing serious. I don't notice my neck to be a problem except with sudden stops in the car that I am not prepared for. I am usually not driving so they then to be unexpected.
CT and MRI images do not show the sensitivities to these minor symptoms in my experience. Most imaging is useless for PCS issues and even the minor neck issues that often accompany a concussion.
The head pressure could have two causes. The movement of the head as one bends over to lift can cause a change in cerebral BP and the straining effort could also cause a change in BP.
I just know to expect symptoms like these. I have lived with them for a decade or more. I used to do a lot of lifting of a 100 to 135 pound objects multiple times a day. I needed to use good body mechanics, breathing and such to limit the head symptoms.
Mark in Idaho
59 years old, retired due to disability, married 34 years, father of three, grandfather of four, Suffered a serious concussion at 10 years old (1965) stopped most driving after concussion at 46 years old (2001), Post Concussion Syndrome/Multiple Concussion/Impact Syndrome with PTSD, immediate/short term visual and auditory memory problems, slowed processing speed, visual/auditory processing difficulties, insomnia, absence seizures, OCD, 14 concussions since first concussion at 8 years old, Taking paroxetine for 14 years and gabapentin for 12 years. Added L-Tryptophan and stopped paroxetine after 3 months of tapering. I currently take 500 mgs of L-Tryptophan AM, 500 mgs noon, and 500 mgs PM.
As of Nov 15th, Due to high stress issues resulting in PTSD, docs put me on 3 meds. Clonazepam but only for 30 days ) .125 mgs twice daily (Doc presc. .25 mgs 2x daily but half a tablet is good) , citalopram (Celexa), an SSRI , and olanzapine (Zyprexa), an atypical anti-psychotic that usually causes weight gain before bed. I lost over 30 pounds since mid July. It just stopped the weight loss. Took me off the gabapentin. I am feeling better than I have in years.
This great feeling only lasted a month. Back to the same old PCS doldrums.
May 2014, I am off the olanzapine due to a 6 fold price increase. Back on 600 mgs of gabapentin before bed.
I am also taking L-Theanine to help with GABA regulation
"Be Still and Know That I am God" Psalm 46:10