To everyone who recommends the OP take a break, in his post he did say that he tried smoking only a few time a month and still had the same issues.
As far as the poster who recommended JWH-073, well surprisingly my experience with that chemical has been fairly benign. The high at low to moderate doses didn't seem to have much anxiety and I eventually developed the mindset that maybe no matter how much I smoked it wouldn't give me anxiety.
Well, one night as an experiment I smoked a lot more than usual and sure enough I had the most bizarre and uncomfortable experience of my smoking career, except for maybe one of my first powerful sativa highs. I had just finished smoking it and lit up a cig, suddenly I started to experience what I can only describe as an "imaginary" pain in my throat. It wasn't real pain, it was just an uncomfortable body sensation that was focused on my throat. I kept on trying to relax but I was only a few steps away from panic mode. After a few minutes the strange sensations subsided and I relaxed.
Regular weed seems to have a mixed sort of effect on me. Sometimes I really enjoy it, other times I feel stimulated in a less than enjoyable way. Whatever the case, I only smoke 2 or 3 hits when I am alone. I may indulge in more in the company of good friends, but really I feel that I'm more sensitive to weed than ever now even though I've been smoking it for years.