I too have lost weight. Was very overweight when this all began.
After the surgery in January, and especially after most of my chewing teeth were removed (I have periodontis) before radiation, I found I had trouble eating with the obturator. Had to drink.
Just when I was getting better with eating, and the obturator seemed tight, the stage 4 cancer came back in a lymph node and now I've had another operation, and food gets stuck in my throat.
I'm back to drinking. And sometimes it comes out my nose.
But... I have lost weight and can buy clothes where people say I am thin. No one has said that for at least 30 years! So I just love getting dressed. I wake up in the morning and thank God I am alive for another day. Start chemo and radiation for the second time this year this Tuesday.