Alif 3 mos ago. fell hard to my knees today, headache, blurry vision, numbness in feet increased & back hurts. can i wait til mon (3 days) to call dr?

Nerve injury: You may have injury to lumbar/lower back region which can cause nerve damage or nerve compression. The result would be numbness and other such symptoms in the foot.

Prob. you can: Can't understand alif 3 months ago. Seems like all your symptoms have been present for 3 months or even longer since you have had spinal fusion, but increased after a fall yesterday. You can take the prescribed Percocet and call your pain management physician on monday.