Hi. My name is***** I'm very sorry to hear about Pigsy's situation. If she has an eye ulcer, that in itself is a very painful thing that can definitely take some totally out of their game. I've seen dogs come into my ER that have eye ulcers that make them just lie around and do nothing else. The discomfort can be pretty significant. Toss on top of that an ear infection in both ears, and the discomfort adds up even more. With how she's acting, it may be a good idea to recheck her sooner to see if the eye ulcer is healing.
Sometimes an oral pain reliever is started if the discomfort from the ear infection is great enough. With how she's acting, it may be something to consider. As far as being disoriented, sometimes if there is irritation in the inner ear, it can cause them to be disoriented. I would watch for circling and head tilts to further indicate this.
The head tilt hopefully is just to irritation / discomfort that she's still experiencing from the ear infections. Hopefully this is something that improves as the therapy for it continues.