I have low bp. My bp readings in the last 24 hours were 73/57, 106/53, 68/56, 77/55, 77/50, and 115/52. Blood tests, MRI of my head, and echocardiogram revealed nothing wrong. I also have dizziness, poor sleep quality, and fatigue. My hypothyroidism is being treated with Levothyroxine. I need two naps during the day just to get by. I do not have a diagnosis and thus no treatment. What is wrong with me? I have seen several specialists but still have no diagnosis. If I pursue treatments for low bp, am I only treating symptoms rather than cause(s)?