Myasthenia Gravis This is a note to anyone searching details about this condition - My cat a lively fast girl suddenly showed limping on one of her back legs - a few days later she was moving like an otter. In shock I got her into to see our vets - on investigation I was given Metacam for her condition. A week later she was still not good first not using her litter tray and toileting outside of her tray unable to cock her rear end over the side. I took her back to the vets who deemed she had Orthopaedic issues. I went to an Orthopaedic specialist who said this is not Orthopaedic this is Neurology issue. I want to the best University Veterinary School in our area and they carried out elctrodiagnoxtics - blood tests - Chest X Rays - urine tests - All results have come back negative which is confusing. Sky has responded to a drug treated for MG which was injected directly into her vein getting her on her feet. The drug only works for 2 hours but she did respond. She is now in the hospital for a 7 day stay to get oral meds to a point where we can give her a normal life. This is a very disturbing and upsetting experience to see your healthy cat suddenly become so lame and unable to manoeuvre causing them stress. I am writing this because I have spent 5 weeks taking my cat everywhere to get answers - MG is when the central nervous system/junction is attacked by the immune system. The receptors are not communicating with the nerve to the muscles - thus - causing muscle weakness all over the body. The physical signs to this are limp - bunny hop to becoming lame very quickly - head area seems weak and cat rests head on her on paws - tires easily - incontinence becomes quickly apparent - cat becomes frustrated with inability to move as before - tail flicking. Cats breathing can become laboured - can effect the chewing - eating and sometimes associated with coughing. These are all the signs of MG. I hope this will help people identify this horrid condition and will know that it is not Orthopaedic but a Neurology condition which needs to be treated as soon as possible.