I have L 3 and L4 fused. I have severe pain coming from L5/S1 and L2/L3. I've been fighting surgery but I'm on huge doses of narcotics and still in severe pain. I may have no choice but to have the two additional fusions. I'm TERRIFIED of the loss and restriction of mobility. Please, if you have four levels fused, please can you share with me what your mobility is like? I'm only 43 and I have two four year olds. So scared.