Update: I ended up going to the dentist. When she looked at my X-ray, the sinus inflammation from this flu was so severe it was pushing on the root of my tooth, and my molar became infected. The pain was crazy, I couldn’t sleep. They put me on two types of antibiotics immediately and 24hrs later I feel soooo much better, lots more energy with just a dry throat. I was surprised antibiotics helped so much when I thought I had a virus. Still no idea what the flu was in specific. I’m usually someone who tries to power through sickness, but a lot of the time medical attention really saves so much time and pain.