breastfeeding and intro

Archhig

Hi ladies I was on the August 2012 board and totally dropped off the charts once my son was born! He is 12 weeks now and I am so in love with his! Breastfeeding has been a whole new experience that I adore, but I have some issues arising and was hoping someone might have some answers. 
My son has acid reflux by the way but here are some issues: 
Fusses at the breast 
Latches and unlatches 
will randomly refuse a breast switches which breast 
Falls asleep at the.breast
Seems fine when he gets a bottle which is once a week
Thank you in advance