ID for Spider with tiny body 2mm or less long shiny legs - very similar to widows but color is reddish-bronze nasty bite numbing-agent?

The above was forced into terse format. The spider is question is simply lovely, and the bite nasty. It resembles widows in shiny and hairless chitin, and the body is extremely small - and not visible unless you crush it, something done frequently at times. The only difference between this spider and the widows is that extremely small body. The bite in reference was near the lower lip, and within minutes it produced a numb sensation in lower jaw - very much like that after a dental visit when some sort of Novocain-etc. had been administered. Swelling was minimal, and within a day. At that point, abdominal cramps that traveled - work one out, another appeared on the other side. It matches no Spiders - either in body-size or color - I have seen in some rather long web-searches for image. It is NOT a hobo or brown recluse - body size. These have been noted in the Seattle and Tacoma areas, so it may be an exotic cargo-traveler.