<s>[INST] Yes, at times I m hearing cracking in my lower back, it isn t all the time and isn t painful, but something I ve recently noticed, it almost feels as if there is movement in the lower back. Is this something that I should see an Orthopedist about or a Chiropractor? [/INST] Hi welcome to hcmIt could be loose body in the vertebrae.Get an MRI spine and consult orthopedician.Thankyou </s>