If you have a bent penis, would it look straight when it is flaccid?
Yes, it will be straight when flaccid. Depending on the cause, you might feel a knot in the penis when it is flaccid, but you would not see anything.
But i think that even when my penis is flaccid you can still see a bend in it.
No penis is perfectly straight, flaccid or erect. I can't agree or disagree about your penis because I can't see what you see. If it is really bothering you, you should ask your doctor the next time you see him. At least this isn't something that is an emergency.