L1-l2 transverse process fx in july. how much time do i give it before being seen again for sudden increase in pain. went away and pain is back ?

This had healed as : the timeline is long enough for that to occur. Treatment is similar to a muscular pull. It could mean that source of the pain is a similar muscular issue or that there is another reason for the pain due to an injury that could have happened at the same time and is revealing itself now or just another problem. In either case, most are self limiting but if the pain persists/worsens see a doctor.