the reason why is you probably didnty cook it right thc starts to be released or break down or whatever at around 180 degrees i think and it needs a fat to bind to so you eally need to cook it into butter or oil then make food out of that butter/oil and eat that from your post it sounds like you just ate some weed but dont feel bad first time i tried to eat weed i ground up a half ounced on some pizza and microwaved it lol i didnt get high but i did have a hard time swallowing a bunch of microwaved weed on a piece of pizza
also eating half a 10 bag isnt worth cooking get like an once and grgrind it into 1lb of butter and simmer it for like an hour or put in a rock pot then filter out all the plant matter and eat the butter you will be trashed for like 10 hours
BTW i guess you have to take it or cook it with some butter, because THC will stick to the fat, if you just ate some fries or other fat food, it will work too