Suggest not stopping DHEA or any other hormone supplement suddenly (unless you have a severe allergic reaction to it)...tapering off is a better way to go. I was on topically applied DHEA, started getting side-effects, so wanted to stop taking it but when I tried, I had no energy. So had to go back on it and then do a taper down off. Slowly increasing to find your optimal dose is also a good way to do it rather than arbitrarily choosing a high dose to start with. Everyone's body is different, so standardization of dosing seems a little odd to me...
On the low bp issue, be sure you are not getting too much magnesium...that can lower bp. Also, double-check with your pharmacist about medication side-effects that may be contributing or causing the low bp and orthostatic hypotension symptoms. Also consider low blood sugar or reactive hypoglycemia as the symptoms may be similar to the low bp and orthostatic hypotension. Salt and hydration are some tips suggested to help deal with low bp & orthostatic hypotension.
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, chronic Lymphopenia, intermittant pancytopenia, chronic malabsorption/malnutrition, etc.; G-Tube; Currently TPN-dependent.
Meds: Pulmicort, IV Ceftazidime, Heparin (to flush PICC line), Claritin, Domperidone, Colloidal Silver (used topically), probiotics, homeopathy.