I am a 69 year old male. I have weakness in my thighs and soreness. I am very irritable. I have constipation. I am always cold even when I keep the air conditioning at 80 or 81 degrees. I have lost 25 pounds with a three month period due to a loss of appetite. I have been following a diet free of gluten, soy, corn, eggs, peanuts, and dairy for about four months. I rarely eat out. I take numerous vitamin supplements. I have had many blood tests, MRI's and CAT scans. Where do I go from here?