I have started getting all the signs of increased hypothyroidism. Feel cold all the time and shaky, so tired I can hardly put one foot in front of the other, continuous mouth ulcers, my nails splitting all the time, feelings of emotion and dying, constipation memory problems and general aches and pains. I even had a dose of the flu in Feb and prior to that had nothing not even a cold for 12 years. I was just wondering whether having a total hysterectomy last year will not of helped. I have been taking 75mg of Thyroxin for over 15years now after breast cancer treatment.