Headaches, lightheadedness, falling down..also have swollen glands, chills, tiny red dots all over, fatigue?

Don't just sit there: Rashes are usually a sign that you need to hotfoot it off to the doctor. Falling down is also kind of a red flag. You know? Don't know where you live and it's a bit late in the year, but Rocky Mountain spotted fever is not an impossibility. RMSF later than September is kind of unusual but who can say. If it is RMSF, more bad things can happen. Maybe an ID colleague can weigh in.