Heartburn? Reflux?

We're not really sure what the cause for our poor baby's discomfort is, might be heartburn? It's literally the only time she really cries - that and when she's naked - and it just breaks my heart to not be able to console her. It doesn't happen non-stop, or anything, but if the Baby 411 quiz on reflux is any indication, then Mallory may have an issue. We have our 2-week well check tomorrow (early due to the 4th of July holiday) and definitely plan to discuss it at our appointment.