Here's a situation I have a tough time with and has accoured before.
15th hand at the table so no info on villain.
Should I just fold?

Texas Hold'em $0.50-$1 NL (real money), hand #1,895,108,645
Table Tampere, 18 Feb 2007 6:44 PM ET

Seat 1: Mr.NaLDo ($24.35 in chips)
Seat 4: sfih ($49.80 in chips)
Seat 5: VanDerClaude ($58.25 in chips)
Seat 6:Hero [ :Js:,:Jc: ] ($50.95 in chips)
Seat 8: gimmarcus ($62.25 in chips)
ANTES/BLINDS
Mr.NaLDo posts blind ($0.25), sfih posts blind ($0.50).

PRE-FLOP
VanDerClaude folds, Hero bets $2, gimmarcus calls $2, Mr.NaLDo calls $1.75, sfih calls $1.50.

FLOP [board cards :Tc:,,,]
Mr.NaLDo checks, sfih checks, Hero bets $6, gimmarcus bets $12, Mr.NaLDo folds, sfih folds, Hero: ???