trysomethingnew,

Welcome to NeuroTalk.

I seriously doubt a wad of cash did anything more that startle or aggravate you.

You anxiety alone can cause the headache.

Even if it was a sub-concussive impact, which I do not believe it was, it takes hundreds of sub-concussive impacts to cause any concern.

I don't understand what you mean when you say "Ever since I have had anxiety that I am getting treated and am very protective of my head."

Do you mean you are getting treated for your anxiety ?

What kind of treatment are you getting ? Meds or therapy or both ? What meds ? Some are counter to brain health concerning concussions.

Your anxiety over touches or contacts to your head can be treated with desensitization therapy. Many struggle with it.

Try to find a way to relax and distract your mind so you do not get stuck obsessing about the wad of cash. It takes 454 dollar bills to equal a pound regardless of the denomination. You can do the numbers.