For a few weeks now I have been getting out of nowhere some kind of spasms in my middle right back, below my shoulder blade, and next to the spine.

I'm F25, I sleep on my side and sometimes on my stomach. I get this pain only when I wake up and raise a little bit on my pillow. The pain hits 2 or 3 times and when I get out of bed there's no more any pain.

I have mild scoliosis but I do yoga and mostly don't have any back pain (I used to have in the lower back). I noticed I also have some kind of knot somewhere in that area and it hurts when I'm pressing it but I also get some relief.