I read this right after you posted it, but I'm only now scraping together two minutes to write something.
I noticed that Clark seemed paranoid at first. Then he got better, but they went to see Dr. Klein for another "treatment" before going to see Henderson. I'm thinking Clark's maddness / paranoia is definitely related to his green K treatment. IS it only green K? Or has Dr. Klein added some red K?
Hug for Clark, although I bet he wouldn't accept it at the moment. I hope Lois is now aware that something isn't right. A paranoid Superman would be a bad thing for Metropolis, in deed.