If you’re having trouble figuring out who sent you unsent messages on Instagram, there are a few things you can do. First, head to your account’s settings and look for the “Messages” section. Here, you’ll be able to see all of the messages that were sent but not received by you. Next, try messaging the person who sent you the unsent message and asking them if they sent it to everyone or just to you. If they didn’t send it to everyone, they may have accidentally deleted it or forgotten to send it. ..