Hi Everyone, OP here. Thank you for checking on me. Diagnosis was the flu. Shady Grove kept me overnight for fluids and fever meds, but mostly for rest. I did not get Tamiflu because I was too far gone. I'm just not really recovering and able to get up and about to do stuff around the house. Luckily my girls didn't catch this, but several friends have come down with it.
Thank you again for the advice, I'm very happy I went to the ER.