My sleeping heart rate always less than 50 and sometimes my waking heart rate goes down below 40 in morning times please see the attached report for timing. Im very avtice and daily do 15000 steps and reduced wieght from 154kgs to 129kgs. Today also i woke up with apple low heart rate notification and after waking up and while walking i felt left chest pain. But im having left chest pain and left hand discomfort from last dec. Took several ecgs, 2 edchos 2tmts all are normal. Is it normal getting low heart rate and pain while waking up? Please let me know how can improve my resting heart rate.