I'm thinking back a couple years to when I started Cymbalta. I didn't get the jitters so to speak, but did have what I'd call a little nervous energy. I took advantage of it and did light work and reorganization of closets and cupboards. Things I hadn't done in a while.
Once in a while I get jumpy?? like things catch the corner of my eye and cause sort of a jerk reaction. This has never gone away. I have learned to not let it bother me as much.
One thing that did help was to take it mid morning (I still take it in the AM). Taking it at night kept me from sleeping.