Week 5 panic attack? Spaced out

I’m on week 5. I’ve been taking it for derealization and panic.  The last few weeks have been amazing.  I felt like I was floating or something and just uncomfortable
All night in bed I felt like my body was buzzing or numb or floating or something and I just felt scared
Has anyone experienced this on Prozac? Could this be from my brain still adjusting? Or is this probably just panic related