M
mist
Guest
So I do a lot of abdominal exercises and when I lay flat on my back and do leg lifts, crunches, sit-ups..etc I hear an audible "pop" noise and feel something at the base of my spine, not pain, in fact it actually feels quite good, like when you crack your knuckles.
Has anyone else experienced this or know what it might be?
Has anyone else experienced this or know what it might be?