I think you are worrying unnecessarily about this. My ascending aortic aneurysm was about 3.9 twelve or more years ago. It is 4.1 now. Surgical repair isn't even considered until it reaches 5. But yes, do all you can to keep your blood pressure low. And if you haven't seen a cardiologist, you might consider seeing someone locally just for peace of mind. Your MD will be watching this to check on how fast it is growing, or even if it is growing. It might be very stable, especially if you get risk factors controlled.

Lose some weight and with your MD's OK, consider an exercise program of just walking every day. That will help you lose weight but will also help lower your blood pressure and it will help you to feel you are doing what you can do to control the risk factors. Avoid lifting heavy items.

I understand why you are freaking out. All of us with this issue likely had the same reaction.