Having severe headaches and being sent for MRI scan? when will it be and whats wrong with me?

I am an air conditioning tech. You have said somethings which need to be confirmed.I deal in air quality. You said you get headaches so much you wake up.
My suggestion at this time is to look for outside influences around you. Dust, mold, dirt and using chemicals recently acquired.
Headaches at night are quite rare. A good flow of fresh air into your bed sleeping area will disprove my idea. Move your bed under the window for one night. Keep the bed in that position until the headaches happen again.
I lived in a house where some crack cocaine addicts lived. My brain levels of intelligence fell dramatically. My cat died from this experience. I was taken for observation for a month. Be aware your home heating is self contained.
The fresh air of the window will prevent that possibility.
My scan results were three days. A previous accident made the possibility of there being a concussion so severe as to return my epilepsy again.
Cocaine is like the start of a petit mall epileptic seizure. I grew out of that horror at ten years old. I also do not wet the bed. I am saying look for aromas which are not right. Things like mold stink get a flashlight and look to see if black mold has invaded your home.
This is a simple start. This occupies your time as you twiddle your thumbs but could make the true reasons known.