1 yo giving me food/feeding anxiety

My little 1 yo boy is giving me such anxiety lately about food!!! We have been doing BLW since he was 6-7 months and have had zero issues but lately if he’s eating he’s shoveling it in his mouth and choking on it which gives me minor heart attacks every time. It’s the worst with sandwiches!! He’s like a hamster and stuffs all the pieces in at once and chokes on it. I’m surprised because he’s always been a good chewer. I cut up everything into bite size pieces, could that be the problem? I don’t want to quit sandwiches but damn I might have to 😅