De - Glad to hear he is alright.
If he has headaches going forward, consider an MRI instead of a CT scan. Long story short - a CT won't show life threatening hematomas of the brain, but an MRI will. It almost cost my dad his life.
Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good ...