PacMan choking

I have a frog that’s at least 6 months old (idk how old he was when I got him) and last week I tried to feed him like I always do, I put him in a separate container and gave him a cricket and when he lunged for it I thought he hit his head on the wall because he layed flat and closed his eyes and let out a squeal then perked back up after about 15 seconds. Everything I read said to leave him alone for a few days so I did and I just tried to feed him again but I left him in his tank and put a cricket in the enclosure, (I used to feed him like this so it wasn’t a big deal) he lunged for it and it seemed like he was choking, his eyes closed and he Layed there for a while, he sat back up and he seemed to be okay and then I saw him spit out his stomach a little bit, he swallowed it back up and seems to be okay now

I have read that he’s clearing out toxins but I don’t know what to do at this point, I’m going to try to take him to the vet tomorrow but idk how to even transport him

he hasn’t eaten in almost 2 weeks at this point, and he jumps at every movement because he seems like he’s starving, what do I do?