Hi thanks for question I read your thyroid profile report, which is absolutely normal. There could be few reasons for weight gain other than hypothyroidism One of the commonest reasons for gaining weight is erratic eating not necessarily over eating The second reason could be lack of any physical activity The third reason could be too much of the fats in your diet Fourth reason could be depression. Fifth one being stress Sixth could be lack of sleep and finally A rare disorder known as Cushing’s syndrome, caused by an excess of the hormone cortisol, which tends to store fats. Consult a physician,who will investigate you for cause of weight gain Hope this answers your question