What is this? After Surgery

Not sure what this feeling is but I am not liking it.  I started to get these "surges" last night but only a couple times so blew it off as a sign that my body is adjusting to being without a thyroid.  This morning, the "surges" continue but increase in frequency.  UGH.  It feels like heat running thru my entire body, then the tremors in my hands come back, I feel dizzy, and my heart rate shoots up into the 100's.  WHAT IS THIS? I am waiting for my doc to call back.  Maybe my body isn't ready for the synthroid just yet? Hoping, praying it is NOT a thyroid storm... one of the reasons of removing my thyroid was to prevent future ones. UGH.  Anxiety on top of the feeling isn't helping either.  Waiting on surgeon to see what to do, what to do, and what the possibilities are.