One day out of the blue my 90 year old mom began complaining about pain in her lower back. She hasn't fallen or done anything strenuous. On the third day she could barely get out of bed. Advil, aspercream and a heating pad helped a little but I was worried. Took her to doctor's office - she's saw a PA; her primary doctor was on vacation. Her urinalysis was negative. PA said its just old age and prescribed a heavy duty ibuprofen which is a narcotic! It's easing her pain much better than Advil but I wonder if a different bed mattress or buying an egg crate mattress topper would help so she's not dependent on pain medication. Any advice? To wake up one day with lower back pain is strange to me. Maybe she slept wrong?