I have went to the hospital months ago cause they thought i had meningitis so they put a needed in my spine and every since i been having back aches?

Injury: You can get an injury to the lining around the spine (the dura). If there is a tear here, you can get leaking of the fluid (csf). Usually, this presents with headaches. This can be stopped by a simple "blood patch" where they take a little of your blood, and inject it over the area where you had your spinal tap. See your doctor and discuss.