Thanks for the thoughts of concern and caring, everyone.
I asked a friend to come by and look to see if I had a tick bite. She was sure it was a bite, but maybe not a tick. She took the picture and showed it to her husband who grew up in tick country. He said, "definitely a tick bite." So she called me and suggested (ordered😀) I go to Urgent Care.
I went to the Urgent Care and announced to the nurse and then the doctor there that I had thought I had the flu but then I noticed this (turning and lifting my shirt). The nurse said, "I'll get the doctor, but I don't think you have the flu." The doctor then heard my tale and said, "That is definitely A Lyme rash and since you are reporting fever and other flu like symptoms, I am calling in a prescription for Doxycycline hyaclate immediately. You don't have flu." So there were questions and answers and then I stopped at the pharmacy on my way home and took the first dose.
The doctor did not feel the need to take blood. She thought it was early enough that antibodies might not be active yet but I was getting the antibiotic anyway so it was kind of a moot point.
My sister-in-law, who had Lyme's disease last summer, said, "Meet sleep, your new best friend." That pretty much sums it up. All other plans put on hold for the immediate future.
Sleep is a good thing.