Hello, Thanks for p[osting this que in HCM First of all, i would like to stress that any given medical symptom in aperson can have so many causes and the main duty of the treating doctor to establish the exact cause of the symptom and deal it accordingly rather than advising medicine as per symptom which may not cure the exact illness. I hope that you understand this part. All the symptoms what ever you have listed is higly suggestive of thyroid problem, that is excessive throid hormone in your blood. This can be confirmed by doing a thyroid hormone profile. As you a young female, you need to check thyoid auto antibody levels also as autoimmuner thyroiditis can also present in the same way. You donot have to worry much as this is treatable medical condition and it will improve with appropriate treatment. Metoprolol may decrease heart rate but may not improve the disease. If your thyroid profile shows elevated levels, you may benefit with propylthiouracil, methimazol etc. My sincere advise will be to go for a medical examiantion with a local endocrinologist who will assess you and find out if there is swelling in your thyroid or not and he will guide you as i have listed above Wish you a good health