Brian -
as Jim mentioned, SSD is permanent.
The world should stop spinning, the wonkyhead should go away, and the fog will clear. However, as Kay mentioned, everyone is different and it's hard to tell when that will occur for you. As she also mentioned, it's still relatively early in your recovery. I remember I was pretty much "normal" about 3 - 4 months post op; but that's me - it may not be you.
My follow up (post op, once the stitches were removed) has been an annual MRI to check for regrowth; that's it. I also opted for a BAHA, which meant minor surgery and a doc's appointment or three. Other than that, I'm good to go - haven't seen my neurotologist for a little over a year (after I got my Divino).
My surgeons told me that they removed my tumor "completely", but I still have a chance of regrowth - approximately 1 - 2%. It's pretty rare, but it does happen.
Hope this helps,
Jan