This may be pure coincidence, and I have searched these forums and found no mention of it, but…
I have twice taken week-long sessions of antibiotics in the past 2 months, and not only did I have more lucid dreams during those two 1-week periods (they were separated from the end of May 2010 to the beginning of July 2010), but those were also the only times that I had lucid dreams during those months
Could the antibiotic be some sort of chemical trigger? Like my body knows it is fighting off some foreign and unplesant invasion in my body chemistry, so the potential for LD healing scenarios is also intensified?