I have a very similar problem, only that everything is normal in first person (apart from looking down on everyone), but it seems that whatever happens in first person translates to my third person camera. What I mean to say is that everytime i want to pick up an item, I have to aim my reticule a lot higher, but not in first person mode. I have a couple of mods installed that let me play as a childcharacter, but it used to work fine. Now even when I roll back to a previous save, the camera is still borked... So my first person camera is too high and my third person camera has to aim too high to interact...
