It turns out I do have a real medical issue. I ended up going to the ER again and they confirmed that I do actually have mild dehydration and need more salt in my diet. So the previous doctor was correct. Luckily, I was given a sheet to use to adjust my diet and get more protein, and much more fluids.

5-6 glasses a day or more was reccomended, and I'm starting to feel a tad bit better. It will still take 2 weeks for my body to get back to normal and for the faint feelings to subside. I still have anxiety that I will faint, and it's really scared me into avoiding simple things like taking a shower (I take a bath instead) or get up too often.

Even sitting sometimes I feel faint. Then again, I'm on Xanax now, so while it does make the panic attacks go away, it also makes me dead tired so it's kind of bad that most of my days for the next 2 weeks will be like this. Afraid to get too active and always having to watch myself. Like getting up slowly, not turning too fast, etc.