So sorry you are having a bad day. I know what I am going to tell you is going to sound crazy but get an apple. Grate it into a bowl. Let it set for 20 to 30 minutes (until it starts turning brown). Eat about half of it. If it doesn't seem to help after 20 min or so then eat the rest. This works REALLY well for upset stomachs but it also works for indigestion and GERD sometimes also.
You really need to get the blood pressure taken care of. Remember, Lupus can attack any part of the body and uncontrolled blood pressure can lead to heart attack and stroke. I understand not wanting to go but it is important. Also, why don't you get another doctor if you hate yours so badly? I say FIRE one and get another if they are not doing their job. Remember, they work FOR you and sometimes they need to be reminded of that