Hi. Gosh, your doctor isn't concerned about bp that is 150 to 180 over 60? Even with the lower number, I would be quite concerned that with medication, your top number has risen to that point.
So, what you are describing is something called Pulse Pressure. This is the difference between top and bottom numbers of your blood pressure. The normal range for most people is a pulse pressure (subtract diastolic -- bottom number from systolic -- top number) is 40 to 60. When it is outside that it is called a wide pulse pressure. There are reasons that this can happen and it is used to determine status of your health. Your doctors should be addressing this and starting to do some testing on you. Here is an article about it:https://www.healthline.com/health/wide-pulse-pressure#causes Types of issues that cause it are valve regurgitation (blood is flowing backwards from your valves so heart works harder), aortic stiffening (if aorta is damaged due to say high blood pressure you've had or fatty deposits), severe anemia/iron deficiency, or hyperthyroidism. And having a wide pulse pressure can also increase your chance of having atrial fibrillation.
So, with all that being said, I hope your doctor is looking into the cause.
That is excellent regarding your weight! Keep up that good work. How is your activity/exercise level?
I'm wondering if you ever checked into your doctor to discuss this? I'd really be interested in what they have to say!