I'm not even sure what "crazy" means. My TBI has convinced me that who/what we are is determined, largely, by a bunch of neurons. Shake them up enough and you can completely alter personality and behaviour. Heck, even subtle injuries can have enormous consequences.

My situation has made me even more sympathetic to the pain of people labeled "mentally" ill. Using that term, implies a lot more choice and control than I believe is really in play - and blames people for their illness.

Really why do we talk about "physical" and "mental" illness? The brain is a body part, just like a kidney or a spleen. We don't stigmatize people who need dialysis for a diseased/malfunctioning kidney. Why are we so harsh on people with brain issues that impact their behaviour? They're physically ill, too. The body part in question is the brain.