mid set and SNFD in straight board 4 players

[alavet]

Hello, i have a very tought spot, sensed myself kinda *freerolled*. the game is rather typical, no any strong reads agains everyone (and as you see probably it would help). it looks like a theoretical queston thought

hvnt remembered all details so hand probably may have some mistakes (ipoker network)

Pot Limit Omaha Ring game
Blinds: $0.10/$0.20
6 players

Stack sizes:
UTG: $23.40
MP: $64.70
CO: $38.25
Button: $24.60
SB: $18.15
Hero: $46.95

Pre-flop: (6 players) Hero is BB with [img]/images/graemlins/heart.gif[/img]K[img]/images/graemlins/heart.gif[/img]9[img]/images/graemlins/diamond.gif[/img]9[img]/images/graemlins/club.gif[/img]4:
UTG folds, MP calls, CO calls, Button calls, SB folds, Hero checks, 2 folds.

Flop: [img]/images/graemlins/heart.gif[/img]8[img]/images/graemlins/heart.gif[/img]j[img]/images/graemlins/club.gif[/img]9 ($1, 4 players)
Hero checks, MP bets $1, CO raises $2, Button calls, Hero calls (?), MP bets $5, CO calls, Button calls, Hero calls (?)
Turn: [img]/images/graemlins/heart.gif[/img]7
Hero bets $8 (?)

it was a very tought spot for me. i thought i am against NFD alsomt everytime, againt flopped straight absolutely. I didnt pushed flop because of these reasons, dont think my set is good. i ever thought about folding that at the flop.
How nitty i am?

On the turn i bet to see where i am, and i think i also made some mistake?

cant simulate that on propokertools btw.