WN you are a well informed professional. Your history and symptoms, including orthostatic hypotention, suggest a transition wherein you may wish to get up slowly and drink a ton of fluids and electrolytes to compensate. You do present a complicated profile with alterations for absorption but, you know; follow your labs while your vital signs need to be seen in context to your personal normals.
For all we know you could be WNL (we never looked). Just kidding but i do hope you check in with your care team. We have seen a number of other girls reporting similar experiences here and that is still anecdotal. One heck of an adjustment eh?