50 nl flop raise

[lead24]

MP: $36.25
Hero (CO): $46
BTN: $34.30
SB: $63.50
BB: $48.35
UTG: $59.40

Pre-Flop: K/images/graemlins/heart.gif Q/images/graemlins/diamond.gif dealt to Hero (CO)
2 folds, <font color="red">Hero raises to $1.75</font>, BTN calls $1.75, SB calls $1.50, BB calls $1.25

Flop: ($7) T/images/graemlins/heart.gif 3/images/graemlins/club.gif J/images/graemlins/spade.gif (4 Players)
SB checks, BB checks, <font color="red">Hero bets $4.50</font>, <font color="red">BTN raises to $15</font>, 2 folds, <font color="red">Hero raises 30 <font color="black"> </font>

3rd orbit, no reads, but i had raised from LP everytime so far. I really don't know if i have any FE, what do you think about the move?

[CruS]

w/o reads I just fold to the 3bet.
If he has been playing back at me on too many flops I might do this.

[PayoffWiz]

You really don't know if you have FE? He just stuck in half his stack. He isn't folding.