I keep getting pretty bad bug bites?

A couple weeks ago on Christmas I got a large swollen bite on my elbow. It definitely appeared as a spider bite, over the time frame I have gotten about fifteen bites. I was never bit before, and they're all quite different looking. Some look like scabs, some are little red bites, and I have another one that is swollen like a spider bite. The 'spider' bites are the only painful one, can't touch those. None of them itch.

Some of our animals have fleas every now and then, and they have lately. But when fleas used to bite me the bites never were swollen or were scabs..

I checked out bed bugs but don't have any that I notice. I live in Florida where spiders are common, I don't think a spider would bite me fifteen times though? Any help on figuring what I should do please!