Just wanted to document that I had a minor flareup recently. I had gotten lazy about my sitting posture and I returned to an old habit: Sitting in a chair with my hips forward and my trunk leaned back such that my upper back is pressed into the back of the chair.

Before my TOS got really bad, I used to sit like that for many hours in a row for many years. Having experienced a flare up from it, I believe it contributed to my TOS by adding compression.

"If only I knew then, what I know now."