Try taking a juice size glass of Aloe Vera Gel just before going to bed. I use Lily of the Desert, Inner Fillet. I buy it by the gal, but there are smaller sizes if you would like to try it first. I order on line from Walmart, but I'm sure Amazon has it also.
You might be interested to know that the Mayo Clinic & The Cleveland Clinic both suggest using aloe vera juice for all digestive problems. I have been using it for years for various reasons and grew my own and have always used the gel. It's important when using the fresh leaves that you remove the green outer part of the leaf, next wipe away the latex which is slimy, and you end up with the precious GEL.