Started feeling the pain again later in the day.

Watched Red Planet and Aeon Flux.  Red planet was good.  Aeon Flux was very good. 

I also watched an interesting show on UC TV, the neurobiology of trust, specifically the hormone oxytocin.  I think it plays into the altruistic nature of humans as the trust component is a big factor.  Particularly interesting as if you follow the thinking ot the end, it could have interesting philosophical and religious ramifications about why people believe in what they believe (trust).  Too bad the lecturers time ran out and didn't have time to discuss those issues.

Doctor told me I need a CAT scan.  I like anything non-invasive.  My exam didn't render anything obvious which is causing my discomfort/slight pain.