I m asking about my mother, she refuses to see a doctor herself, so I m don t have other options. About her: she s 51 hrs old, has vegan diet with low fat and low protein diet. She weighs about 90-95 lbs and it 5 ft 1st tall and has sedentary lifestyle. She incredibly thin and has issues eating spicy food, or eating too much and other. She has undiagnosed mental issues, and doesn t leave her house. A few years ago, she has developed following symptoms: she gets really really cold feet suddenly, feet get cold and numb with stiffness and cramping, sometimes her whole body gets cold and stiff too . This causes difficulty with digestion, gallbladder pain and cramps and overall chills, constipation with hard rock stool. She treats it with Tylenol and warm blankets. Episodes last several days, followed by weakness and fatigue for days. Also, since her sedentary lifestyle includes lots of reading, knitting, writting, her eyes have a visible inflammation on the white part and one of the eye has frequent pain. Her main problem is the chills and severely cold feet. Do you have any ideas for what it might be?