Poop issue

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hey my cranwelli hasnt pooped in about 3 weeks! in the 3 weeks time hes has eaten 1 mouse 2 hornworms and the rest of his diet was nightcrawlers. So i got really scared when i noticed he has a bit of a bulge on his one side so i didnt feed him for about 5 days and gave him warm bathes everyday and it went down a bit. Then i gave him some repta-aid about 4 daysago to help with the pooping since Griff told me that it has a good amount of fiber in it and still no poop! i fed him a healthy nightcrawler the other day so hopefully soften things up so here are some pictures. He acts completely normal, like still burrows fine just around fine and is always happy when food is around but hasnt pooped for a while I really dont want anything to happen to him so if anyone has any suggests please dont be shy!