Hi Mike. Welcome

I am on a Wellbutrin-Lexapro-Remeron combo.
I -think- I have GAD. Not exactly sure. I am still digging.
From what I've read, you may have periodically suffered from obsessions. And like Wonder said, the thoughts you listed are typical for obsessions. To be truly OCD, you would have to have some compulsive ritualistic behavior along with the obsessions. And the rituals are not something you enjoy, you detest them but cannot stop doing them.
Some of the compulsions I've seen posted here are scab picking, washing hands until they bleed, pulling hair, checking appliances over and over, touching things, counting things and making sure they are even, cutting oneself, saying prayers.
I've also read about OCPD (Obsession Compulsive Personality Disorder) --- I think it is called. It is a form OCD, but the person actually enjoys the rituals and believes it is the right way to live. They might look forward to going home and lining up all their pencils in a row. They might love to straighten crooked pictures. They might get a kick out of counting. The OCPD drives other people nuts, not themselves.
I really don't know, but from what I read of your post, I think GAD might more fit. I identify with a lot of your symptoms, and I believe I have GAD with a twist of ADD and pinch of OCD. A delicious soup! The crappy thing about GAD is that it is "generalized". We want to know -exactly- what it is that we have. GAD is such a wimpy sounding diagnosis!
Oh well. Take that with a grain of salt. It is too bad you can't go to a guru and find all the answers.