I started with muscle spasms in my neck for about 2 weeks, no pain just spasms, and then the muscles in my back begin to freeze up and spasm, and than a night my legs would cramp. I walking ony 40 minutes a day in the sun, the temperture was about 93. I was given muscle relaxers and ibprofen to take and I woke up one morning and my urine was amber color, and I was very dizzy, and hardly stand that lasted all day. I started having changes in my bowls, olily stool and pain in my lower back at the end of the day. Could this all be from dehydration. My doctor keep saying nothing was wrong. This went on for months, chronic back pain.