sicilian pin variation

Hello I was hoping somebody could tell me what's wrong with this line for black. I can't add a diagram unfortunately as I'm posting from a mobile phone: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 Qa5. To me it looks like there's only 2 possible responses for white, exf6 or Ndb5, and as far as I can see both lead to an ok game for black. I checked an opening database and it didn't have anyone playing this move so there must be a problem with it I just can't see what it is. Thx in advance for helping

ah ok thx a lot, there had to be something. I guess 10. Bc4 would also work actually trapping the queen? Either way c3 and it takes too long getting her out of trouble

After e5 you should play Nd5 followed by Qa5. The variation shown above is bad for black. The computer shows the move h6 in that position for black, but it is bad anyway.