Hello doctor. My age is 25yrs. M suffering from sudden weight gain, irregular menstrual cycle from last six months, hair loss, memory loss, excess fatigue, stress, mood swings. No exercise and diet helping in losing weight. Gained 15kgs in 1yr syddenly. Pls help me. M not understanding the problem and its frustrating feeling like a 45yr old lady at this age. Pls pls help