If your mom has the same thing, Id be inclined to believe that there was something icky at the motel. From what you discribe, they sound like bug bites. We have these mite things in the springtime here and boy do those bites ITCH!

I'd put some anti-itch stuff on them and wait to see if they clear up. If they arent gone in a few days, I'd see a doctor.

Hope you feel better! I like your siggy btw