Good that you're not seriously injured.

I love that feeling like it's happening and you can't do a damn thing about it, why? That lack of control is your mortality. Accepting it and accepting your own mortality eases anxiety. You are going to die. You may become seriously ill or injured one day and there is nothing you or anyone else can do about it. Accept this and you will be at peace.

I used to just sit and think about my body as a rotting corpse and imagine everyone I knew and loved as the same. I was a strange kid...and at first it is freaky but there is peace in this knowledge.

Obviously that doesn't mean don't take care of yourself.