I agree with all that Dana has written.
A middle ear infection can cause seizures. The balance organs are located within the ear. E cuniculi, which is cause by a microscopic parasite that the bun can have been born with, can also cause seizures.
For an ear infection, antibiotics is what you do. For e cuniculi, you give an anti parasitic med called fenbendazole. It is often combined with the antibiotic Baytril. To bring down inflammation and to relieve pain,you often get Metacam (meloxicam).
You can have testing done for e cuniculi, but the tests are not always reliable. A full blood test (CBC) can give important clues about the immune defence and organ status. If this is too pricey for your current budget, many vets will try to treat empirically with antibiotics and pain meds.
Teeth grinding is a sign of pain in rabbits, if it occurs with other symptoms of pain/discomfort. Rabbits are very sensitive to pain, and pain meds are often vital for survival. Crashing into things might not be about inability to see, it could be about her balance being completely off. This is consistent with both an ear infection and e cuniculi.
It is very important that you get some food into her. It’s not known if rabbits can be nauseous (they cant vomit), but some vets will prescribe a motion-sickness antihistamine in case the apparent vertigo is causing nausea like it would in a human. This could help with appetite.
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