Hi John,
I want to thank you for serving our country. I remember Vietman very well. The hot temper could be do to the area of your brain that was injured
if the frontal lobe (forehead) is the area that controls a persons temper. As far as depression that is all part of having epilepsy and some other neurology problems. It can also come from the meds a person is taking and a person can get depressed as well as have a hot temper.
You went through a lot and having a TBI injury is no fun, I can relate to it since I've had 2 brain surgeries. Try taking vitamin B12 1000 mcg. once a day it works great reducing seizures and it helps calm a persons nerves. I wish you only the best of luck and May God Bless You!

Sue