wow...this is horrible.

i'm gonna lump all of the villains as one. their hand ranges are...
most likly: JJ, AK, AQ
less likely: AJ, KQ, AA, KK, QQ (i think those big pairs would not play like they did preflop, likewise AJ/KQ are too weak to continue after your 3bet)
in for kicks: 22-TT (set value...right? right???)

i'm worried about JJ here, i think any player preflop given their action can sanely have JJ.

i'm actually going to check this flop and see what the other guys do. it's a scary flop for any underpair against 3 guys.