This is really hard to explain, the sensation I get, and have had since immediately after ds's birth. I had an epidural, and TONS of fluids through IV. Afterward, everytime I would lie down or change position while lying down, I would get this gushing type of sound/feeling in my spine just below my head. I asked the nurses and doc's about it at the hospital, and they sort of all acted like I was insane or something. No one ever really diagnosed it or told me what it might be. I can only best explain it like the sensation of having those pop rocks inside of my spinal column. It's been 16 weeks....I still am getting it every once and a while when I lie down. Any one ever felt or heard of such a thing?