<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am a 52 yer old female and my pulse on waking up is 54-56min then resting pusle is 64min and respiis 20min. Is this normal? Feel very tireddo keep feeling vey anxious having butterfleis in my stomach fro timeto time for about 2 weeks now waht can I do about this?  <response>: Hello Its very common to have pulse in between 50 -60, rather its a sign of healthy heart as all athletes who do intense training have a lower heart rate. Now in your case, it may be a natural phenomenon which is good, but as you are feeling tired I would suggest that you rule out secondary causes of lower pulse, most common being hypothyroidism less working of thyroid gland by doing S. TSH. Also, a baseline ECG to rule out any conduction abnormality of heart would be recommended. This two simple test with give us a better picture and will help relieve your anxiety. Regards Chat Doctor. 