I took Nexium for years, thinking it was helping control (GERD) . My Doctors wouldn't listen to any questions I had concerning the problems that developed, such as fluid gain, instead they added more meds. I slowly lost the ability to walk without a cane. Then could walk only short distances, the pain in my back and legs were like nothing I've ever felt.After a 20# weight gain (115 to 139# )of fluid along with the expense I quit taking Nexium and within two months time I lost 25#. Noticed the pain was getting better, then in three months kept weight off was walking unaided. Is there a reasonable answer as to why this could happen?