I understand completely.
No, tongue twitches are not anymore concerning than other twitches. I get them infrequently, too.
I'm definitely coming through this with a new perspective on life. I just hope I get to apply it, y'know? And odds are I will, and that makes me happy. I'm not religious. I can't say, 'everything happens for a reason', but you can ascribe those events your own reasons.
After this is over, consider the people who are afflicted. Not just with ***, but anything that severely squanders quality of life or duration. Take your knowledge of their fear and realise that anything, but the pursuit of happiness is unjustifiable. Petty emotions, for me, are a thing I'll leave behind following these events.
I've also come to understand the exact magnitude and power my mind has over my body. This, if there is indeed nothing wrong with me and the neurologist today assures me of that, will end my anxiety by arming with an invaluable insight over what fear can do to me. It's been a terribly frightful experience, but I find it important that I take something good away from this and I hope you do as well.