What can I learn from this hand?

[CroMagnon]

This is from the Mil. There are 1145 left, 900 get paid.

Poker Stars
No Limit Holdem Tournament
Blinds: t1000/t2000
(Ante: t200)
9 players
Converter

Stack sizes:
UTG: t62600
UTG+1: t39125
MP1: t69355
MP2: t24675
Hero: t42025
CO: t32680
Button: t34150
SB: t19200
BB: t64201

Pre-flop: (9 players) Hero is MP3 with 9[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/diamond.gif[/img]
4 folds, <font color="#cc0000">Hero raises to t5000</font>, 2 folds, SB calls t4000 <font color="aaaaaa">(pot was t9800)</font>, BB calls t3000 <font color="aaaaaa">(pot was t13800)</font>.

Flop: 3[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/heart.gif[/img] (t16800, 3 players)
SB checks, <font color="#cc0000">BB bets t16000</font>, <font color="#cc0000">Hero ??? </font>.


SB had been a bit flaky, limping and making several min raises and showing Ax or small pocket pairs. BB had gotten his chips on one hand where he had KK and beat two short stacks that had gone all in.

He was getting good odds to call with just about anything PF. I am behind pocket 3's, 5's, and 6's. Ahead of 7's and 8's. Of course behind TT+. TT is a possibility, but JJ+ I think he makes a re-raise. Can I fold 99 on this board?

Thanks,
Cro