I might have figured it out, I think my received at (in messages settings) had my email checked along with my phone number.
No, I don't think that's it. Received at means that anyone can iMessage you to either your phone number or your email. This seems to be a current iOS 8 bug that will send out an iMessage using your email instead of your phone number. You can be in the middle of a conversation and it happens.
Hopefully it'll be corrected soon.
ohhh its a bug, I didn't know that, wonder if it was fixed in 8.0.2
So question: What does putting a check mark next to your email in "received at" even do?
ohhh its a bug, I didn't know that, wonder if it was fixed in 8.0.2
So question: What does putting a check mark next to your email in "received at" even do?
ohhh its a bug, I didn't know that, wonder if it was fixed in 8.0.2
So question: What does putting a check mark next to your email in "received at" even do?
What is your "Start New Conversations From" set to?
Is it not a bug. What this guy said ^^^.