Could getting x rays a few times a month, for a few months in a row, cause harm?

The amount of radiation you are exposed to is determined by the types of x-rays you are getting, including the number of views taken each time. Te best way to determine your radiation exposure would be to review the x-ray studies you received with a radiologist. Most x-ray studies give a small amount of radiation for each one so it really depends on the studies involved. Good luck!