Welcome to NeuroTalk. Sorry to hear of your struggles.
You are not alone and your symptoms are real. Most of us have had similar experiences. It helps to accept your limitations, especially sensory limitations and take steps to work-around them. Trying to push through usually only makes things worse.
Get some foam ear plugs and keep them handy for waiting rooms, stores, and other sound intense areas where you have to be. Mack's brand of ear plugs are good. I always have a pair nearby, just in case.
I have to avoid some places during noisy times, restaurants, etc.
The anxiety attacks can be from the trauma (PTSD) and/or they can be from your brain struggling to tolerate the many sensory stimulations in a normal day. The latter is very common. Some of us have learned how to see the very early signs of over stimulation and remove ourselves to a quieter environment to prevent the crash. For me, the first sign is a need to focus harder, either visually or auditorily. Or, suddenly becoming very aware of many distinct sounds/voices rather than a mixed cacophony.
Few doctors have much help to offer. Headaches may respond to upper neck therapies. Most MVA's include some form of whiplash. Any head impact has a neck component to it.
Have you been prescribed any meds ?
Check out the Vitamins sticky at the top. It has lots of good information.
Please feel free to tell us anything. We have heard it all. Many doctors will think a symptom is odd and we will say, "Oh yeah. Lots of us have that."
One of the most important needs you brain has right now it quality sleep at normal times. That is when most recovery happens. Avoid daytime napping if it causes you to not sleep well at night.
My best to you.
Mark in Idaho
"Be still and know that I am God" Psalm 46:10