orfray makes some good points. If the paracetamol (Tylenol, acetaminophen) works, stay with it. You should try to slow down and reduce your stress load. You probably should alternate pain killers so you give your liver a break from the paracetamol. Your doc sounds like he understands concussion.

Don't worry about the CT or MRI. That is only needed at this point in time if you suddenly get an "extreme" head ache, lose muscle control, get double vision or start slurring your word. Not very likely. Stay out of thunder storms. You are more likely to get hit by lightening than need an MRI or CT. Bad analogy but I hope you get the point.

Go hug your kids and tell them you need them to help you get better. They can surprise you when you need them to settle down so mommy can get better.

My bets to you.