I dont know whats wrong with my SQL join, Its my fisrt time using it

I dont know whats wrong with my SQL join, Its my fisrt time using it

Ok, I have this code, I dont have error.... i have just nothing....
nothing apears:
$idea = $bdd->query("SELECT * FROM ideas INNER JOIN follow ON
ideas.idcreador=follow.idseguidor WHERE follow.idseguidor
='".$_SESSION['userid']."' ORDER BY id DESC");
while($datoideaperfil2 = $idea->fetch())
{
echo $datoideaperfil2['ideas.idcreador']
; }
What is wrong? Help me please its my fist time with SQL Joins...
Thanks