Worried about Luna: Strange symptom; she's twitching (update #36)

[Kirsten]

Luna's very attached to me lately, spends a lot of time in my arm when I'm at the computer. A week ago, I noticed for the first time that her entire body is kind of twitching, down to her paws... Sometimes, this happens every couple of seconds. It's hard to describe, it resembles a hiccup, but without any sounds... I also saw her twitching - barely visible - on other occasions, but it seems to be worse and occurs more often when she's lying on her back, curled up in my arm.

Looks nerve related to me, and my biggest fear is she may have a brain tumor. Already spoke to my vet about it, but of course there's not much she can do. To find out, it would require an MRT, which of course I cannot affort, and even if I could and would get the dreadful news, it wouldn't help because in that case, there's nothing you can do...

So my vet suggested to try not to worry too much, as Luna doesn't show any other symptoms of a brain tumor. She also suggested B-vitamins to support the functionality of her nerves. I already started with these vitamins.

But I'm still worried. The thought that my beloved girl may have such a terrible disease is like a heavy weight on my shoulders.

Please keep my Luna in your thoughts and prayers...

Thanks,
Kirsten