One tumor is gone and another is just a sliver after 4 keytruda treatments

I was diagnosed with CC August of 2019. Been having issues and thought it was my gallbladder. Had one Y90 treatment and it reduced the tumor from a 4 inch diameter ball to a 3 inch long by 1 .5 inch diameter tumor. Since my doctor said I was going to die even if I had chemo, because it had spread into the lymph nodes, I decided I would not do chemo and accept my death. My doctor would not prescribe keytruda even though the tumor was DMMR/MSI-H. At the urging of a friend, I went to the Markie Cancer Center in Kentucky and the doctor said I was a prime candidate for Keytruda. For months, I had been having severe pain whenever I ate anything with fat in it. Basically, I had been living off of fruit, jello, and crackers. Campbell chicken noodle soup would cause me pain and I lost 40 pounds. Had no body fat to speak of. After the first Keytruda treatment, I had one last incident of pain 2 days later where I had to take 3 morphine pills in about an hour. After that, I haven’t had pain since. One of my tumors was supposed to just be a hemangioma and the other got the y90 treatment. I had a baseline CT scan in March. After 4 treatments and right before my 5th treatment, I had another CT scan this Monday. What a difference. One tumor was basically gone and there were just a couple of spots where the tumor had been. The other was just a sliver of its former self. He said they were both greater than 50% reduced in size but it looked more like greater than 75% from the pictures he showed me. One was basically gone according to the Dr. I am hoping at this rate, it will be gone by the next CT scan.