If it pulls apart real easy then its bud rot. No good to smoke, no good for nothing, remove and discard any you see like that and anything that was near. Stuff near can be used for a taste tester before it turns to rot as well. Cheers
If you're that worried, bro!? Better to harvest and stop stressing out. If there's no strange smell, then it's not rot! If you don't have experience with smells, better to harvest! 👌😇👍 Good luck, bro!