Good Morning blueboy,
I think you have a good point, the caffeine is adding to your problems. As far as Paxil, there's no question about the stimulant effect of Paxil..it's real. I have been on this med and could not stay on it for the very reasons you have noted. Lack of sleep is always a big issue for me and I also have anxiety so any mediction that may cause over stimulation is not good for me.
You may want to discuss your concerns with your physician.