Wonky zooming and panning

Hey guys, I have a very strage problem, that bugs me and happens allmost everytime.
After a certain action (still not sure what) I can barely zome in or our or pan, and at other times i press + once and I fly trough my model. How can I reset this?

I have the same problem I believe.
When I try to pivot by holding down the MMB, it Zooms in or out coming from the side to side Wheel Movement.
I believe this is something that came from adding the Space Navigator and
almost makes Blender unusable for me.

I haven’t figured out how to work around it yet.

hit period “.” on your numpad after you select your object.

I finally found “Steermouse” for OSX and disabled the tilt wheel buttons.