I'm sorry to hear of your loss.
Trust me, you're not alone with the short attention span problem. Sometimes when people are talking I completely disregard what they're saying; I'm in my own little world with a one-track mind.
I'm also quite clumsy- I work at a restaurant, and I'm constantly dropping things or failing to recognize when I have a new table or if a customer needs something... this happens at home, too. I can hardly walk and chew gum at the same time on some days (I realize that some of this may be due to my new medicine)!
I don't know if that helped at all, but I find that sharing experiences is sometimes therapy in itself.