Dear Esperenza, The symptoms as mentioned in your post can be due to hormonal imbalance in the body, which occurs during Menopause. As you are already on medications for under active thyroid, the role of thyroid hormones in your symptomatology can be ruled out. However, it will be better to consult a Gynecologist & get hormonal assay done for Estrogen, Progesterone, etc. If any abnormality is detected, then it will be subsequently managed by Hormonal Replacement Therapy. Other causes for your symptoms can be: 1. Any fluctuation in the blood pressure & blood sugar levels. 2. Inadequate hydration status & electrolyte balance of the body. 3. Deficiencies of certain nutrients like Iron, Vitamin B 12, Folic acid, etc. which interferes with blood formation. 4. Stress, inadequate sleep, etc. Investigations like complete blood count, estimation of blood pressure & blood sugar levels will be helpful to rule out any pathological cause for the symptoms. Wishing you a Good Health. Thanks & take care.