Good Evening Dr. I am 69 years old and I do not have have blood pressure . But 2 days ago I experienced while doing household chores  I felt sudden upper back pain with palpation I can feel my heart is beating fast.I laid down and in about 30 minutes it was gone.Should I see a doctor now.Thank you so much.
Hi. You are 69 years old non-hypertensive individual with pain upper back with palpitations which got relieved with rest. Any pain from navel to lower jaw could be cardiac and associated palpitation puts heart as first in the list. Second is simple muscle catch which can cause palpitations because of the severity. If it is a spinal injury it will not get relieved with half an hour of rest. Considering your age take up investigation for heart including electron cardio gram (ECG), Echocardiography and treadmill testing(TMT). In case you have any doubts come back for clearing it out. Take care.