blood pressure can cause a lot of problems that's for sure. my wife has lupus i almost lost her in jan.she stopped breathing and started passing out. they had to put her on ventilator for three weeks and had to have a pace maker put in. but long story short she has been sick two to three days a week and they finally nailed it down that the blood pressure med they had her on to help regulate her heart with was dropping it to low when she takes her heart med she takes once a week. hope you get feeling better.