As I've pulled ~20 ticks out of me in the last year, I suspect there have been a few I haven't seen, so I'm aware of Lyme as a possibility. I haven't had any neurological symptoms (e.g. achy joints), which are among the most common.
This page suggests I should go see a doc. for possible Lyme, 'immediately', because I've got more than 7 of the 83 symptoms.
But 6, 14, 22, 53, 67 & 71 are all normal (for me) symptoms of a hard run. Add to that the symptoms of a mild 'cold' and I easily exceed 7...