Hello, vtbitten. Thank you for posting.
Tick bites are often harmless, in some cases, they don’t cause any noticeable symptoms. However, ticks also can cause allergic reactions, and certain ticks can pass diseases onto humans and pets when they bite. It sounds like you might be having such a reaction. We cannot know. I would advise seeking medical help if, as you say, it's gotten worse over several hours.
The link below is to a similar thread, it's an older post, but there are some fairly recent comments there. Copy/paste the link.
I hope you feel better. Keep us updated.