Why do cats sometimes twitch and shudder as though they are having a fit, yet they are perfectly hea

Hi there.Twitching can be caused by a lot of things. Some of which are serious and need to be treated by a vet. While other forms of twitching may be as simple as air crossing over the fur, fleas or dandruff. This information I am posting for you is from: http://www.vetinfo.com/catneuro.html#twi. in cats It has a lot of good information on the various types of twitching. I hope this helps.

There are a number of causes of twitching in cats, because this can be associated with pruritis (itchiness) and there are a lot of causes of pruritis. If this occurs very frequently during the day it is probably more likely to be some sort of problem with itchiness. If it occurs infrequently during the day then something like a focal seizure may be possible. These are reported in cats more frequently than in dogs (at least that is my impression, I'm not sure it is actually true). Twitching is sometimes seen with liver disorders, pancreatitis, low blood sugar and high blood sugar, as well. I think that toxoplasmosis causes enough neurologic problems that twitching could be related to it, but haven't seen that written anywhere.

One particularly common cause of twitching is feline hyperesthesia syndrome, but normally the twitching occurs more along the flanks and top of the spine near the base of the tail. Often, cats with this condition are OK unless they are touched or petted, but many will have twitching and even self-mutilation without any external stimulus.