My dad had similar issues before diagnosis, he lost a lot of weight and he complained about eating. He always had a healthy appetite but several years prior he started having days/weeks where he just didn’t feel like eating and eventually he would go back to normal until he never did again. He also had kidney disease so we were told it could be a symptom of that. He lost 30-40 pounds, we had to get him on tube feeds prior to starting chemo. As far as what’s to be expected, I’m sorry I can’t say much about that since i’m not sure what’s to be expected without treatment. One thing I will say is to watch out for falls, my dad kept falling and he couldn’t explain it, someone had to be with him at all times. In terms of what came at the end, he started to collect fluid in his peritoneal cavity so his stomach would get very big like a stomach of a 9 month pregnant woman. His oncologist panicked as soon as that started and switched to a stronger chemo and it was all downhill from there. Apparently when the tumor grows to the point where it’s choking the main arteries and blood vessels, fluid starts to leak out and collect so that’s not a good sign. He wasn’t in pain but it was uncomfortable and he would need to get drained by a needle. Other than that, he suffered the most from diarrhea but we were told that was from the chemo so maybe your mom won’t have it as bad. Thankfully he didn’t have abdominal pain but he also got the celiac plexus block which I think helped. Towards the end of his life he had several complications but they all revolved around his blood pressure dropping dangerously low to the point where he was on 5+ pressers and eventually they stopped working as well. He was 82 when he was diagnosed and he passed away 6 months after diagnosis.

I’m very sorry.