twitching and no more buttocks....
I am definitely not a doctor, but if I were only twitching I'd be so happy. I mean SO, SO HAPPY. After reading more than a human being should ever subject themselves to, I am under the impression that if you are twitching alone, I wouldn't worry about it. If you have twitching combined with other symptoms...than maybe look into it some more.
I am not diagnosed with anything, so I am actually considered (by all my perfect tests) to be a perfectly healthy person.
I have a couple different types of twitches... I have the type that move around (I think the frequency varies from one per second to one every 10 seconds or so) and these seem to be slightly stronger...like....twitch in abs, twitch in leg...break for 10 seconds or so...twitch in forearm....twitch in buttock...twitch in flank...
Then I have the twitches that stay in a particular area more consistently..usually after cramping for awhile...like hand and forearm, lower leg muscle and my stomach (like AnnMarie and I say it feels like you are pregnant and the baby is kicking). But these more constant twitches are not necessarily as strong, but more like a heartbeat or flutter at times. Sometimes I see them in my forearm and they are obviously in different muscles because they travel within the same basic area, but like you said...they look like an alien is in your body.
Plus...all the sudden I have noticed that I have no more muscle on my bottom. Sounds kind of silly, I know, but I think I twitched my muscle away or something because I sit down..even in my computer chair and I feel like I am sitting on my bones! It brings new meaning to loosing your a**
So...I don't think there are any clear cut answers. It seems like it is more a collection of twitches and other symptoms. I wish I knew!