What type of doctor should I seek?increased and low blood pressure, & heart rate changes not associated with position or activity, tingling, loss of ability to hold things, tired, mood swings, anxiety nausea Just turned 60 had been active walking,weights,shoveling,dancing, yoga Started with day of fainting upon being upright I blamed on low blood sugar or dehydration from not eating before going to bed without eating after an active day seeming without cause except for chronic stress from life changes I was tested September for RA, lupus, etc because of years of joint and muscle pain which were all negative