The employee informed management on 12/7/23 that EE was seen by a physician on 12/6/23 for back pains from an injury that EE suspects happened on the job on 12/1/23. EE did not notify EE's supervisor of any injury until 12/7/2023 and was released to return to work with no restrictions on 12/7/23 and continued to work until 12/13/23 when EE was written off.