I bet it is just anxiety.
I just read that the medications Clonidine (Catapres) and Venlafaxine (Effexor) helps to reduce it but I guess you will not go to those extremes.
If I have an advice is to wait a few more days, it will probably go away.
Read about Adropause, it can happen very soon. http://www.goaskalice.columbia.edu/2557.html
Btw, you ruined my joke about menopause.