Get a digestive aid, it lacks in your regime. But, I dont know, stomach pain... you should look into leaky gut, parasites, candida and all that rotten shit from hell.
Im currently gonna do a serious charge against my intestinal problems,which are one of the foundations of my degenerative, chronic, prematurely aging, Fun. Hehe. Colon cleanse, parasite cleanse, Liver Flush and micronized glutamine with a good probiotic (NOT kefir which has casein, bad bad bad) to finish up. Lets pray for not having Lyme. I also want to keep up NB... aluminum and mercury need to flee from this flesh device.
My intestinal symptoms also worsen at night. Its IBS, or at least that how I call it.