A. Wry neck or head tilt in rabbits is quite common and can result in incoordination and altered movement. This is a serious condition and very difficult to treat if the rabbit becomes so uncomfortable or nauseated that it cannot eat. Common underlying factors are inner/middle ear infections, trauma, parasite (encephalitizoonosis or migrating worms) and exposure to toxic substances. Check to make sure he is in a safe, level place so he cannot fall and injure himself further and that he cannot fall into a water bowl. Hand feed and offer water regularly until you can get him assessed by vet for medical treatment; investigate for any evidence that he has been licking or chewing at anything which may be toxic (lead paint or zinc coated/galvinized metal etc
A. this doesn't sound good at all, it could be due to a brain parasite called enecephalitozoon, if so it sounds like he would need to go to the vet ASAP.
Bare in mind at this point it might not be possible to save him.
A. It is best to keep your rabbit in a cool, dark place to rest and away from any objects that may harm him if he is having seizures until you can get to a veterinarian. Seizures can be caused by a number of issues including illness, neurologic problems or toxicity, and a veterinary exam is best to determine their cause.
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