HELP!!!!

Ma

my baby is 8 weeks and she is having problems latching, she always has been great and never had problems before, but the last few weeks she has been crying and I also feel that she is no getting enough milk because of that, 2 weeks ago I've visit a lactation consulted and she told me not to worried because my baby is putting good weight... now I have to hold my bood so she can keep drinking becomes out of her mouth and my bood is really soft but seems that that is normal at thus stage, things are getting hard and I don't want give up, can somebody help me