Anxiety when waiting for a response to texts/messages

I'm sure this is common in our modern technology era, but I have anxiety about waiting for a response to a message. I feel frustrated that sometimes people say this is insecure or needy, because it's due to my anxiety. It's more than just worrying, since I have social anxiety with panic disorder, waiting for a response to message can mean panic attacks, or basically panic/anxiety attacks until a get a response, and then most likely a panic attack when I see the "you've got mail" notification. :( :( :(

Anybody else have this or something similar?