I've been having these sharp pains in my mid to lower back that come and go it's on the side as and it feels likes it's on the spine?

Sharp pains: Sharp,shooting pains are often due to pinched nerves which make the fleeting,jabbing discomfort occur with certain motions of the back. This different than the steady discomfort of a back strain or inflammation. Pinched nerves usually resolve without specific treatment except rest,but,if you can take them,nsaids like ibuprofen often help. See your physician if pains persist or worsen.