Why does your back hurt/pop?

Question

Why exactly Does someones back hurt?

I mean my back has been sore all week and i dont believe i've pulled it or anything along those lines

and another question to go along this, why exactly does your body crack when you stretch?

Does it mean my body is just sore and stuff?

lol, this may sound stupid and i probably know the answers im just seeking something to better fit it

Answer 1

Only you can dig up the answer as you know what you did and your back crack when stretch because of the joints are  a little loose for movement .If they were tight you wouldn't be able too move . Good luck and have a great day .