I took my blood pressure and its running low 96\70 i took my sodium pill and had some salt in my food but its still running low what can i do?

If no symptoms, just: observe. If you are using an electronic, home BP machine, know that home BP machines measure BP differently than a sphygmomanometer used in most doctors' offices. If you are not light-headed, nauseated, and do not have any other symptom of low blood pressure, just observe and see what normal for you on your machine may be. What may help is to calibrate your machine with a sphygmomanometer.

Remember: What matters with managing blood pressures is not just the number but also if you are having symptoms. If you are not having any dizziness or lightheadedness (particularly on rising from seated) or significant fatigue associated with blood pressures in that range you don't have to necessarily be so aggressive. But you could try compression stalkings to help blood return from your legs.

Why do you have: sodium pills around? Has this happened before. Given the diagnoses that you list, I would assume it has. I think a thorough investigation to rule out Addison's disease and other types of adrenal insufficiency is essential. I would not assume it is POTS until endocrine cause is ruled out.