Multiple Sclerosis has been found to be a disease of immune system malfunction. In effect, the immune system attacks its own healthy tissue; in particular, the protective covering around the nerve cells in the brain, spinal cord and peripheral nerves. In some instances toxic levels of mercury in the system can mimic MS symptoms. Common symptoms include pins and needles, tingling, increased reflexes, muscle weakness and spasms, poor balance, visual problems, problems with speech or swallowing, pain, low energy and difficulty going to the bathroom.