Oh yes, I got mood swings during regular dosages and tapers. However they seem to get worse with each new taper. The last taper I had made me pretty depressed. There wasn't much I could do but make every effort to practice self-care, wait it out, and talk it out with whoever was willing to listen.
Do you have any relaxation methods that you use? Therapy is also an option I used it once before short-term during a taper and it helped me cope a bit better. Also, if you are capable, some light to moderate exercise might help to balance you out a little.