LPR vs. GERD: sleeping
Some of the differences between LPR and GERD confuse me. In fact, while I've learned an enormous amount from using this board, a small critique I'd respectfully pass on would be that LPR and GERD are too often lumped together or used interchangeably on this board (e.g., by the end of a thread started about LPR, it's become about GERD, or vice versa). While the two disorders obviously have the same basis (acid reflux), LPR and GERD manifest themselves very differently--the most obvious difference being the lack of heartburn in LPR compared to its prevalance in GERD. True, there are some people with LPR who also have GERD, but it's less than 30% of all LPR sufferers, from what I've read; which would mean of everyone with GERD, a much small percentage than 30 (10%? 15%?) would also have LPR (since more people have GERD than LPR).
My current confusion is about sleeping, and I'm wondering if anyone on this board understands this better than me. Here's why I'm confused: GERD sufferers often experience bad symptoms at night. One of the differenciating characteristics of LPR, is that with LPR you usually experience no symptoms at night (true for me). Yet, both GERD and LPR patients are advised to sleep on a "slant" or a wedge. The reason for this, from what I understand, is that during the day, when we're more or less upright all the time, gravity is a huge factor in helping to keep our acid in our stomachs and out of our esophagus; at night, if lying flat, there's a clear passageway for the acid to move from the stomach into the esophagus. Okay, all that makes sense to me so far and I have been using a specially ordered wedge pillow... BUT if GERD and LPR sufferers alike depend on gravity, and GERD and LPR sufferers alike should sleep on a slant instead of sleeping flat, then why--if we assume for a second we were all sleeping flat--would GERD patients have frequent nighttime symptoms and LPR patients would not? In other words, why wouldn't LPR also manifest itself at night just like GERD?