Is it healthy to be playing flush draws like this?

[DontRaisePlz]

PokerStars 1/2 Hold'em (10 handed) converter

Preflop: Hero is BB with T[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/club.gif[/img].
UTG calls, <font color="#666666">6 folds</font>, Button calls, SB completes, Hero checks.

Flop: (4 SB) 4[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, UTG checks, Button checks.

Turn: (2 BB) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, UTG folds, Button folds, SB calls.

River: (6 BB) 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>...

Haven't had a hand like this in awhile. First hand, table stats are nothing out of the ordinary so assume fairly tight.