Okay so I've wasted a lot of time searching for answers on mTBI and the healing phase. It's left me rather confused as to whether or not you will fully go back to your old self capable of the same potential regarding concentration academics, thought patterns, personality - pretty much anything you can think of.

I presume I had a mild concussion 10 years ago, based on the simple fact that I didn't feel nauseous or vomited at all. What my question is, does everyone vomit if it's more serious than a mild TBI? Do some people not feel nauseous or vomit even if they have suffered moderate to severe brain injury, and can you suffer such long term damage even though your symptoms lasted a very short amount of time like some hours?

Some people claim you recover fully, 100%, having a pristine brain again. So this leaves me wondering what type of damage is going on in a concussion. I know it's to do with a chemical reaction killing off neurons and possibly shearing axons. But... They say that these axons will reconnect with time. So is the damage really only the death of brain cells/neurons? If so, this happens all the time and it wouldn't be such a biggie to me. Since some also state it only affects your brain capacity, which I believe to be the death of neurons, I find it hard to believe that you can be invisibly impaired from one single concussion.

And then there is people who don't use the term "recovery" apparently, rather they use "compensation" since, according to them, the brain repairs itself by balancing neurons and hence leaving it at permanent altered along with restructured state of mind. So if this change of function in the brain doesn't affect you, it must be because the brain compensates all the time when neurons die of natural causes? Aka aging.

It seems hard to get a satisfying clear answer on this, even from experts...