On Tue I developed a strange ache inside my left pec more towards the shoulder. It felt abnormal to me; not the kind of ache you get from exercise. Concurrently, I felt generally ill and with a touch of brain fog. Also occasional pain in the left sternum right where the heart is.

Same thing all day on Wed.

Corpse pose was little help. I put a cold pack on it with some minor relief, but that was temporary.

Then I recalled I hadn't done any neck stretches in a couple days. Sometimes when you feel ill and groggy you don't feel like doing anything...

I used a heat pack to warm up my neck muscles (Carex Bed Buddy), did the neck stretches, a little more heat pack and a first rib adjustment with a strap. Poof! Left chest ache is gone. Ill feeling is gone. Brain fog is gone.

Question: Knowing what you know about TOS and the anatomy that's related to it, what is your interpretation of what was going on in my body?