>>76529939
middle of my back/spine, one of them is just so tender. been like that for a month. No clue why or how come it's not recovering. Haven't been doing any squats and stuff for a while.
Any tips for fixing it?

>>7611054
as posted to the manga making general, I'll most likely be going to Japan later this year.
Any books I should pick up or be looking for?
(beginner here-not that it fully matters)