So yeah, got bitten by a Yellow Sac Spider couple of weeks ago and finally just figured out what it was. Apparently I'm one of the few unlucky people that reacts to them as if I had gotten bitten by a Brown Recluse, except it's not as serious as a Brown Recluse bite, as the skin is only slightly eaten away around the bite.
The fucker decided to bite be about 9 times, so yeah large bite area with skin eaten away. Apparently that type of spider will bite humans aggressively if the encounter them while hunting.