Before starting work at 7:30 am, 8/13/20, the Supervisor noticed that the employee was in pain. Employee reports that in the early morning (2:00 am) they felt severe pain in back. EE was advised that they could not work under those conditions and that they could go to the CFSE. EE decided to rest for a day. On 8/14/20, the employee reported back pain and is referred to the CFSE.