Insomnia and Eureka... these may seem like incongruous terms but I experienced them in unison last night.  I won't bore you with my recent medical ailments but, suffice it to say that, as a result of re-occurring vertigo and a recent loss of hearing in my left ear, my doctors have put me on high doses of steroids.  They warned me that I may feel jittery or tense. Surprisingly, I have felt neither.  In fact, I would have to say that I f...