It could be the change in generic or not. Maybe if you really think it is, next time call another pharmacy and ask if they have a different generic. I noticed where you're from. I know the area very well. I know there are various pharmacies in your area (one at Giant, one near McDonald's, and a CVS across the river in a shopping center near the toll bridge exit. Maybe another?)
You know, it takes a little time to adjust to any minor change. Also, we all have some crap days that crop up, but hopefully what you feel today will pass soon.
I never found Geodon or it's generics as great depression fighters. It helped a bit more on my manic symptoms. I've also taken other meds (in conjunction with Geodon) that aided with depression more.