Hi, I have been bitten twice by spiders.
The first was a small garden type spider which had crawled up my shirt. I felt something and scratched the area through my shirt which must have driven the spiders fangs through the skin. I could see two tiny red dots in the center of my chest and felt a sensation like that of sunburn which subsided a few minutes later.
The second time was from a v.large Tube Web Spider that I trod on with bare feet. I felt a pinch then pain and then the same burning sensation in the arch of my foot. The burning went away after an hour or so.
It didn't half make me jump!
Also, a friend's father was bitten on the earlobe, as he slept, by a House Spider. His earlobe swelled up and turned a deep purple colour. I assume there was some pain involved.
Cheers
Al