Still trying to figure out this Baclofen

Ever since I adjusted up my Baclofen from 60 mgs a day to 120 mgs a day my life has been an almost hourly beat of ups and downs. Sometimes I feel okay other times I feel like I have the flu.
The headaches and the extreme fatigue is getting to me and I don't know if this is a permanent state or just an adjustment period. I drink more Diet Coke now than I have in months. The facet injection sites are still sensitve but overall I am okay.
I just wish that this Baclofen hangover would just go away.