Why does it feel like my nerves are on fire when I'm about to faint? Ever since I learned I was?

For anything about a drug trip, the first guess is B vitamins. Get nutritional yeast powder and/or B-100 pills. Vitamin B2 is a water soluble dye that turns urine bright yellow. When the color fades, it's time for another dose. Read some books about nutrition so you know how to eat right.