I assume that your doctor checked the heart for murmurs with a stethoscope?
If your baseline really is 132/40, it doesn't sound completely normal and did raise some thoughts if your aortic valve (valve between heart and the main artery) is leaky, but if no murmur is found, it's probably not.
During panic, the blood pressure can reach remarkably high levels, and in my (non-professional) opinion, one should avoid measuring the blood pressure during panic attacks. It has no value, besides causing more panic (and higher blood pressure). You already know it's high. The fact that your blood pressure increase with panic is a physiologic response that can't be avoided. What can be avoided, however, is the panic, so maybe you should get that problem treated.
If your 132/40 did occur with a slow heart rate, and your 159/85 and 140/98 with a rapid heart rate, it's another argument why I hope your heart is checked for murmurs. Is it?
Take a couple deep breaths. Calm down and approch this logicly. The first thing that cought my eye about your post. Is drinking water and electroliytes. OK lots of water is good I would like to know what kind of electrolytes you are drinking. Electrolytes include potassium, sodium, magnesium, calcium and phosphate, each of which are present in a variety of foods. Then you said you are taking potassium and magnesium. For starters you should not be taking any supplements that include these. You can get all the potassium and magnesium from nateral foods. You see the potassium and other substances must work together for your body to utilize them properly. In fact to much potassium is even worse than to much sodium. Stick to foods that contain potassium. Also take and log your pressure three timess a day and use the average as your representation. Your blood pressure will always fluctuate. There is a good website that has a free online blood pressure log. And also a coll diet tool and great information. bpchronicle.com