I Am Asking A Question In Regards Of Feces My

I am asking a question in regards of feces my mom has stage 4 breast cancer metastasized to the brain has 4 tumours. My mom on jan19 had seen one of her dr and told them her bowels have not been moving for almost 6 weeks dr. Suggested restoralax because the lactoulose was making her vomit my mom has been taking this everyday today her bowels started to move a bit but clay like then tonight she called me I went over thought her vowels were moving but they didn't some long what like fatty tissue that's what it looks like came out of her bowel about the size of a pencil no blood just wondering if this shoul be checked into right away as I am a PSW I have never seen anything like this with any of my clts. My mom has lost. A lot of weight and appetite has decreased she gets dry heaves I have to force her to eat