Hi C.-- My son (now almost 13 months and still BFing at naptime and during the night- we co-sleep) became very, VERY distracted around 5 months. At the time, I was working full time and pumping. He took the bottle no prob, but when I got home woudn't BF. Acted like he wasn't interested at ALL. Made me cry because I thought there was a prob, he didn't want me anymore, wanted to wean, etc. Thank goodness for La Leche League! Their book The Art of Breastfeeding has been a God-send more than once. They talk about diff stages of BFing. The advice in the book, and on many attachment-parenting sites, is to lay down with baby in a quiet, dim room and nurse side-to-side. Lie the baby on the bed next to you, and try to nurse while you are on your side. This was the only way my baby would nurse for quite a while.
I was determined to continue BFing and knew (from all of the research) that his distraction was only temporary. Only just recently (in the last month) has he been able to nurse in public (and that was only on a quiet airplane). Even now, the only place he will nurse is in our bedroom, in the rocker or in bed. Keep at it because its so wonderful for both of you.
ALL of that being said though, you know your baby best. If it truly isn't working for you or baby, then its okay to stop. You have extenuating circumstances to deal with, and it sounds like you're doing a FABULOUS job. You are a wonderful mother! Keep up the good work! :)