The other thing I’d like to say, after reading the rest of this thread:
CET, you mentioned words or conversations ‘penetrating’ only occasionally. Would you say you feel numb? Detached? Might you be experiencing depression? It can take different forms; sometimes it is more like numbness rather than intense sadness. Do you still have things you enjoy doing, people you like to see? I like what LOAFER wrote, I agree with them.
Anyway, if that sounds like you, maybe consider treating your depression before grappling with the ADD…. Therapy is always good for whatever ails ya (if you’re lucky enough to find a good therapist.) 