Made stuffed chicken tonight and used toothpicks and fed it to my child. i tried to make sure i took all the toothpicks out but now im having anxiety if whether or not he could have swallowed a piece of toothpick or if i forgot to take them all out?

It is unlikely this would cause any problem, even if he did swallow a piece. We have experience with kids eating everything from screws to bugs to whatever and they travel through the gut within a few days. If it was recent, feeding him some stewed okra or similar vegetable debris can form a congeal around any foreign material and assist its safe travel out.