Overpair situation

[bob2007]

I've played very aggressively for about 1 hour at this table. I have been seen bluffing and stealing and trapping players. I believed that prior to this hand I would be perceived as loose raises / bluffs. The player I am up against in this hand is seen as a tight player, havetn' actually seen a single hand of his. Bigal37111.

I am a losing player at nl so far. Played about a month now. I am a high stakes limit player trying to make the switch. A major leak may be that I'm not betting enough because I don't want to scare players off.

***** Hand History for Game 5872627989 *****
$ 100 USD NL Texas Hold'em - Friday, April 13, 21:07:59 ET 2007
Table Table 127224 (Real Money)
Seat 3 is the button
Total number of players : 10
Seat 2: Mind2006 ( $ 47.29 USD )
Seat 3: bigal37111 ( $ 240 USD )
Seat 6: Danwan8 ( $ 208.84 USD )
Seat 7: altinlala ( $ 46.38 USD )
Seat 8: Hero ( $ 175.01 USD )
Seat 9: swann73 ( $ 55.89 USD )
Seat 4: i_am_a_bat ( $ 98 USD )
Seat 5: BluePig ( $ 99.10 USD )
Seat 10: gmagni ( $ 129.55 USD )
Seat 1: intellisg ( $ 96.50 USD )
i_am_a_bat posts small blind [$ 0.50 USD].
BluePig posts big blind [$ 1 USD].
** Dealing down cards **
Dealt to Hero [ Qd Qc ]
Hero: dark cardroom
gmagni: lol, I can imagine
Danwan8 folds
altinlala folds
Hero calls [$ 1 USD]
swann73 folds
gmagni folds
intellisg folds
Mind2006 folds
bigal37111 raises [$ 5 USD]
i_am_a_bat folds
BluePig folds
Hero raises [$ 14 USD]
gmagni: Last hand, my runner runner wudlve on, right?
bigal37111 calls [$ 10 USD]
** Dealing Flop ** [ Jd, 8d, 4s ]
Hero bets [$ 15 USD]
bigal37111 calls [$ 15 USD]
** Dealing Turn ** [ 8c ]
Hero bets [$ 30 USD]
bigal37111 calls [$ 30 USD]
** Dealing River ** [ 4d ]
Hero bets [$ 76 USD]
bigal37111 calls [$ 76 USD]
Hero shows [ Qd, Qc ]two pairs, Queens and Eights.
bigal37111 shows [ 5d, 6d ]a flush, Jack high.
bigal37111 wins $ 270.50 USD from the main pot with a flush, Jack high.

Can't remember if I wasn't paying attention, but I kept thinking he had a jack with a good kicker. Forgot about the flush draw. But I also questioned, if he had a jack, he would have raised the small feeler bet I made. But I thought he would've been more likely to do that if he had a flush draw .