I give you my empathy
once I had 3 mosquito bites on my arm... and I went to disneyland the next day... I wore a short sleeve (it was hot) and the mosquito bites were right there... very unattractive =(
If you're worried that they're spider bites... look really, really closely, and see if there are two punctured marks.. really small... if there are... then you might have bitten by a black widow!!! (lets hope that is now the case).