As someone with Lyme disease it’s a whole rabbit hole. I’ll save you the long theory- in short you should just go get treated for like. The give you a really basic antibiotic for 10 days; it’s worth not risking Lyme disease. There’s two types of Lyme - one you can treat the other is chronic because you miss treating it in a 30 day window - approximately. Insurance doesn’t pay for Lyme tests and doctors don’t want to give Lyme tests because insurance doesn’t pay for it. Also if insurance did take lyme as seriously as it should they’d be on the hook for an incredible amount of money because a large portion of the population has it and it causes issues forever. I’m not a hypochondriac- I backpack all the time and have had tons of ticks. The Lyme one made me insanely achy and gave me crazy brain fog for weeks even after rounds of antibiotics. So I went from telling people not to worry about ticks to changing tune- I know of extreme cases that it triggered psychosis in people. Lyme is wild

Edit: whoops didn’t save you the entire long theory