Jenny • I agree with Annie that 'normal' is not the answer; 'normal' does not mean 'optimal'. You may be hypothyroid. I personally am experiencing major hair loss, serious fatigue, am colder than most people, lots of hypothyroid symptoms. There is a wonderful book called Stop the Thyroid Madness and*admin edit* which you might find useful. I have both MG and Hashimoto's thyroiditis and have been looking for solutions for a while now and am hopeful that at some point I'll be 'symptom free'. It's definitely a long, slow process. But take heart ... there are many, many people going through the same health issues and who are more than willing to share their experiences with you.