I’m a nobody with no credentials I’m willing to share on the internet so take this as the single dissenting opinion so far. I would not be going to urgent care if the concern is Lyme disease, they won’t treat that there.
Shortness of breath, call 911
If it starts spreading into a web like pattern in the veins in the area, with localized warmth and rapid heart rate, call 911
Localized neurological deficit, touching skin with the pin of a needle can’t be felt, call 911
Lyme disease? Requires multiple courses of antibiotics over 6 months and the Unlucky NP or PA working at the urgent care on a federal holiday isn’t the person to deal with a 6 month long antibiotics course. If you can find an urgent care with an MD or a DO that is board certified in internal medicine, then that would be worth going to. But urgent cares are a dice shoot when it comes to anything remotely complex.
But I’m a nobody and it’s generally better to err on the side of caution and go in, depending on what the urgent care provider wants to do. They can always make things worse. Medical errors are usually around the second or third leading cause of death in the US each year.