Okay, this clarifies your thoughts on Fibro.
I'll say this:
1. Allmost all informed patients know that doctors/medical personnel have pre-conceived ideas about idopathic pain. That is why it is almost pointless to visit most allopathic doctors. As I mentioned, the pain from Fibro is real, caused by a sensitized central nervous system, which contracts muslces and keeps them that way. There are psyiological changes that happen at the cellular level; but I think you probably know this.
2. Fasiculations are a well know symptom of an over active nervous system and are harmless, except if you think about them all the time, because if you think about them all the time (curiosity is killing me) you are thinking about them in a negative manner. You can't be thinking about them in a positve, welcoming way; otherwise, the twitches would just be a "ho-hum" or ordinary part of your day, no big deal. I will suggest that you are worried about them.
3. People who experience others having illnesses can believe they are made stronger by it, but often the fear of the same thing or similar lurks in the subconscious. I think that is natural. Is it strength or is it denial of the fear, and do the twitches harken back the memories of the father with MS? If it did it would be perfectly understandable and not a sign weakness in a person. You frequently think about it, so it is still an issue in the present, which is okay. A therapist may tell you what you already know, as many of them have pre-conceived notions about their patients, too. On the other hand, even if they have pre-conceived notions, sometimes a therapist can provide insight into your behavior that you didn't realize. And... you may luck out and find someone who actually will approach the situaiton with an open mind. This is bothering you. I would tell any friend who has written what you have that very same thing. Same about the fasiculations.
4. You take Gaviscon and don't twitch for several hours. Can you think of any reason that a med for heartburn and GERD would do this? I can't. Except for placebo. Nothing wrong with it if it works, but I think it has a calming effect mentally (remember the overactive nervous system) and allows you to think of your daily matters.
5. Your medical work situation has given rise to the idea that there is shame to be attached to an anxiety disorder, but it is part of the human condition, and some people are more sensitive (in every way) than others, and will exhibit more physical signs. More and more allopathic doctors are understanding a mind-body connection to illnesses, a fact that was well know as far back as the ancient Greeks and understood by doctors up until about the 1950's, when "science" was applied in earnest to all of human problems and illnesses. A human is not an automobile: fix this broken part, and back on the road again. I am not downgrading science when it comes to virus or bacterial infection or dealing with heart disease, etc., but when it comes to ideopathic twitches, pain and other maladies, for which no test can find anything, "science" is lacking in the explanation of what human emotions do to the human body. But... science is catching up there, too. Medicine is an art. That old saying has meaning, because "science" cannot explain all illness or even all wellness -- the person at 105 who eats and smokes, etc..
6. You say other people wish they were more like you, similing and always talking to people. You don't feel depressed, but people do not know your "trouble". Do you think you can hold conflicting emotions and thoughts like that and not have it bother you?
7. Things will go a lot better if you understand that fasiculations are harmless manifestations of anxiety and stress. There is plenty of "science" to back this up, plenty. But you do not or cannot accept this, and you have to ask yourself why. I can only make guesses, and, for disclaimer, I am no doctor or pyschological therapist.
8. Today, most visits to doctors are the result of anxiety or nervous illness. You probably know this. It was well known sixty years ago, but doctors want to find a cure and will test and test and test -- or not; and patients want an explanation they can easily undrestand. Some want that diagnosis even if it is dire and wrong. To be told that "it is all in your head" is insulting and not really true at all, as I pointed out, and patients cannot accept that and feel shame or weak.
9. If you wish, look up the writings of Abraham Low MD, then without investing any money, go to the library and find and old copy of his books. You will see that this is nothing new under the sun, nothing to be ashamed of, and something which can be treated. Knowledge is power.