I am 77 years old. White woman. MRIs diagnosed MS. Brother had it,at age 35. Spent 15 years in a nursing home Died at age 72. I am fatigued, had a shoulder pain, which comes and goes. I walk 2 to 4 miles a few days a week. Married, husband walks with me. Have a son diagnosed with MS two years ago. He is 52 and gives himself a shot daily. Doctor says it is for me to decide if I should take medication or shots??? What to do??