On August 29 Ronnie woke up and told us he couldn't walk.
After trying to move through the morning in the usual way we ended up at the doctor's office and the lab for blood work.
The doctor asked us - wasn't he sick recently? - to which we answered no.
He said he thought it was Toxic Synovitis, a fairly common virus that causes hip pain, but was sending us for some tests because TS was usually preceeded by a really bad cold virus.
The symptoms in the links below described Ronnie to a T.
And to keep you from worrying unnecessarily - he was walking again by evening and running the next day.