I know that some of my added tension is because we're just finished episode 11 (out of 13) on the new season of Daredevil. That show has consistently done an excellent job of keeping the tension level high without it being overwhelming. That said, it's not for everyone; it really isn't family friendly. Thus we only watch it after the little boys are asleep, leading to later bedtimes for us.
Speaking of a lack of sleep, Starcraft II also released a new patch today, and with it some new missions. I know that my curiosity is going to overcome my good sense and that I'm going to at least look at the first one before going to bed tonight.
Maybe it will help calm some of this energy coursing through me.