I have a weird symptom that I've been noticing in the last few months. When I go to bed and lie down and let my body relax, I often get a kind of spasm - quite gentle, not painful, but definite - for just a second in my upper back as the relaxation is deepening.
I've noticed it usually as I'm lying on my side but that might be because that's my usual posture for going to sleep.
What is this?
I've noticed it usually as I'm lying on my side but that might be because that's my usual posture for going to sleep.
What is this?