I’m practicing bikram yoga for more than 18 months, 3 times a week and it feels really good, but since a few weeks, by the backbend compression of spine, i feel a pain, not a nerve or muscle pain, rather a bruise pain, and more in the middle back. I am very flexible , especially in the forward bend, but my backbend was going very good and I could go further and further.By the camel pose I feel nothing and during the day or night it’s also normal, just when I do the backbend. As a child and still now, I could not really round my lower back. So is there something becoming flexible, or do I have a bruised spine??? thx for advice:-))