Don't worry,
Everything sounds perfectly fine.
Take a couple readings at home in the evening, nicely relaxed in a comfy chair with your arm supported on a soft arm cushion. Take three reading a couple of minutes apart alternating arms. Discard the first and average the last two...record the average for the day. Do this for thirty days. Your TRUE relaxed, average blood pressure will be the average of those thirty numbers.
If you want to get two numbers for each day, wait at least an hour or two before the second set of tests.
NEVER take a huge number of readings consecutively... the artery starts giving completely untrustworthy pressure results.