Hello,
You require a consultation with a primary doctor who can run the appropriate bloodwork checking for metabolic disturbances such as status of hydration, electrolytes,
liver, and
kidney enzymes, and SUGAR levels to be sure you're not diabetic.
Next step (which the primary can also do) is to screen you for what we refer to as ORTHOSTATIC problems meaning that your blood pressure may be suddenly be going down when you stand, get out of bed, or otherwise become active.
If that's clear then, he will decide to send you either to a cardiologist or a
neurologist looking for cardiac rhythm or valvular sorts of problems while the neurologist will likely be checking you over for what to be
SEIZURE EPISODES.
Those are pretty much the MAJOR possibilities. I encourage you to see someone RIGHT AWAY and not let any more time go by as these will simply get worse before they get better.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Dariush Saghafi, Neurologist