Thank you for sharing this with us!

What made me think was the part about Tourette's syndrome. I started reading after it and realized that when I was a child, I kept having these "habits" caused by "stress", which were exactly described in one of the articles I cannot link here.
I had nose twitching for some time, and when it stopped, I started grimacing on my forehead (translate sais frowning, but not sure if this is the right expression). I was like 12 then, and I clearly remember how creepy I felt in the classroom, but I couldn't do anything with that. It came back again some time after it'd stopped but didn't last long (some month altogether). I hope I got rid of them for good.

Another remark which might be connected. Now it's pretty cold in the flat, and sitting all day doesn't help. I'm sometimes even shaking. And when it starts, I feel my muscles contracted, and it makes SOB even worse. When I get some warmth, taking a deep breath gets much much easier.