I don't understand what you mean. Are you not sure the pain is real or not sure what caused the pain ?

Headaches are common with PCS. They come and go. Often with no pattern or way to make sense.

There is no reason to be anxious or concerned about a common pain level headache.

btw, A week or two of doing better then a relapse is not uncommon. It is the roller coaster ride of PCS.

I wonder if the headache at the same time as you were talking was just a coincidence. Agitated talking or excited talking can be a bit over-stimulating for some.

There could be other things that contributed or maybe the headache just happened.