Please list other symptoms. Thanks!

I’ve been having lower back pain for almost half year now. I work at office and i sit all the time I think that’s what caused it. it used to be bad, when i bend over backward it hurts and comes with burning sensation and sometimes sharp pain. I started to exercise more and now i can bend my body without hurting. it’s just that i still can’t sit too long or i’ll feel burning sensation, there are times if it gets bad i’d feel like i want to throw up.

can my pain go away if i simply stay active more? or do i need to seek for medical treatment because of the abnormal characteristics such as burning sensation or sharp pain?

my legs are fine, i dont feel numb or anything on my leg. just back pain and right shoulder pain from using the mouse.