I am not going to presume to tell you whether to let her cry or not - I just want to share my own similar experience. Both my children have reflux. They had completely different symptoms, by the way. In any event, my oldest daughter was similar to yours - very hard time napping. Oddly could sleep all right at night, but during the day at naptime she just would cry and cry. For my daughter, the more she cried, the worse her acid reflux would flare up. It was a vicious cycle. It got so I learned that the key to happiness was to prevent her crying. (And no, she's far from spoiled - now my other daughter - that's another story - LOL!) Anyway - this will horrify you likely - but I found that if I held my daughter to nap that she would nap peacefully - for 3 hours straight - and I learned to do a thousand things one-handed (hey - there's plenty of handicapped people worse off than having only one arm and they can do far better than I did). My dear mother was going to be my daughter's babysitter when I returned to work from maternity, and she was horrified at the thought of holding her for 3 hours. I told her that was fine, she could handle her any way she wanted. But for me - I'd rather hold her sleeping than hold her crying. Well, sure enough, after I was back to work a couple of days my mother said to me "You know what. You're right. I'd rather hold her sleeping than hold her crying." I know you probably didn't want to hear my story - and it wasn't easy - but I got used to it and it worked for us. One more piece of advice. My oldest is on Zantac (and loves it - apparently it's an acquired taste because I think it is horrible). Anyway, what no one clued me into was that as they grow, they need the dosage increased. And it takes up to 2 weeks to get into their system to help them, so as she grows, if you notice that she seems to be getting some worsening of symptoms, you might want to ask the doctor if she needs a dosage increase. They grow so fast at that age, my daughter needed a lot of dosage increases. Good luck in whatever you choose to do!