Hi, I Have A History Of Back Issues - Degenerative

Hi, I have a history of back issues - degenerative discs from age 18 and severe pain every 2-3 years. Last Friday, I slipped down 3 stairs and landed badly on my lower back, but didn't feel much pain. However, now, 5-6 days on, I am beginning to feel a dull ache and feel my back is seizing up. Is this simply my body recovering after the fall?