carly,

As Jo*Mar said, you need to be careful when suggesting diagnosis. Commenting about online research versus the comments of friends who have experience with PCS/TBI can make a big difference. Doctors hate cyberchondriacs who diagnose from the internet.

Have you noticed your husband having any difficulties when he sleeps? Many with mTBI injuries develop problems with sleep apnea. Sleep apnea can make PCS symptoms magnify to extreme levels.

He may wake up gasping or suddenly start breathing very heavily. Being sleepy during the day can be a sign or sleep apnea. Most doctors only consider Obstructive Sleep Apnea but Central Sleep Apnea can be a problem with mTBI subjects. Inflammation in the upper neck can cause the autonomic nervous system to stop the diaphragm from pulling breaths. Sometimes, the inflammation is sporadic and due to neck position or occasional neck trauma. A common chiro can often over-look or even contribute to such a problem.

I posted some comments on your other thread too.

My best to you.