Sorry, not a nice topic, but I haven't seen any posts on this problem. I had a trans-lab procedure, which included harvesting fat cells from my abdomen and using them to pad the metal plate they put in my skull after removing tumor. The week after I came home from hospital the diarrhea started and has continued every day since. Neurologist says the procedure probably was not to blame, but the onset of the digestive problems was so sudden, like a light switch, right after surgery. Tumor was really wedged into brain stem. I wonder if the excision damaged something in the brain that controls digestion.
Meantime, lab work recently showed that I'm so deficient in vitamin B12 that my general practitioner says I will need monthly B12 injections for rest of my life. Supplements won't fix it. Stands to reason that food is passing through my digestive system too quickly to allow it to absorb nutrients. I'm already at risk for osteoporosis, so I'm concerned for my bones as well. Has anyone heard of this happening to anyone else? I'm experimenting with eliminating dairy from my diet to see if I've suddenly become lactose-intolerant, but it's not changed the symptoms. Next up will be to see if I'm dealing with a gluten-intolerance. So frustrating!