Hi...I once made a terrible dosing error and cut too much and got slammed. In my case I went right back to where I made the error, stabilized, then started with much smaller more cautious cuts. I know they say not to up dose, but I feel if you've made a mistake and it was only a few days ago, then I would consider going back to where you made the wrong turn, stabilize, and chalk it up to a learning experience. It becomes a bigger problem if you continually up dose during your taper. A one time error will set your schedule back a few weeks and you will likely not repeat this mistake. My taper went fine after 3 weeks of stabilizing, and then stating out with smaller cuts.
Other opinions, of course, differ on this. Only you can decide for sure how bad you're feeling and how you feel you want to handle this situation.