Wow! I am recovering from multiple concussions and am disabled, so this really resonates with me. I'm not a smoker, nor that heavy, but often I will need to "run away" from a conversation with my wife, due to my symptoms.
Mostly, I find solace in another part of the house or yard. Rarely, I will need to leave the property. Generally when I do, I drive to a trail nearby where I can take a walk in the woods.
I think I should do more meditation. Thanks for your story!