Complete loss of energy, please advise

Hello. I too have the exact same symptoms. The lightheadedness doesn’t ever go away. Even when lying in bed it’s still there. It was like a light switch from one day to the next. I was living my life independently. I have been to many doctors and Er visits and can’t seem to get answers. I recently joined a group on FB and I am learning that even though doctors say our labs are normal, we need to get the numbers and compare with the actual normal ranges. For instance I was told my vitamin d was okay back in October and now looking at the numbers, I was actually boarder line then which means I’m probably low now. Same thing with magnesium and vitamin a, and b12. My b12 was 673 which is considered normal but a friend said some people have symptoms of it’s under 800!! 😮 Now I know that more than one vitamin deficiency can cause a LOAD of difficult symptoms. I also feel like my body needs iron and was under the impression that i was checked for iron because my hemoglobin was normal. I was wrong. My doctor should have done a FULL IRON PANEL. 😮 I just learned this week that low ferritin can cause my symptoms too. If low enough I could need an infusion. I will find out this week. Get all of your labs and compare numbers. Be your own doctor. Remember, even if the doctor says it’s normal, DOUBLE CHECK the range.