>>All seems to be well now.
GOOD!
Info and maps from Nat’l park service on attending 4th of July in D.C.
https://www.nps.gov/subjects/nationalmall4th/maps.htm
Not a clue what was the cause. My son, an RN case manager, took me to the ER, said that if the fever had not broken they would have kept me a few days ((4th of July!)) and dismantled me to search for sepsis. Yikes! I hope that is over with. :)