Nearly had a meltdown a little while ago
in General ASD
After having my hair cut I went back to my flat. I tried several times to open the door, but the key wouldn't turn. I was getting more and more anxious. I had to make a real effort not to become hysterical. Luckily with the next attempt the key turned.
Which doesn't stop these thoughts from popping up: I always take it as a warning sign that I'm not taking care of myself properly.
Again, I do recommend the breathing exercises I posted, when I am stressed they really work.