Ignoring your instincts or intuition could be one of the parts of this dream (the crows screaming at you). All people, not just empaths, have dreams that try to communicate to them messages that would help them understand many things in their lives. Many empaths and psychics have precognitive dreams as well. It might help you to try and interpret what this dream is trying to say.
There are many examples of people who have had precognitive dreams. Abe Lincoln comes to mind....A quick search turned up these:http://www.world-of-lucid-dreaming.com/10-dreams-that-changed-the-c...
It is not uncommon at all.
But you are most concerned with upsetting dreams...Intense dreams are not uncommon, either upsetting or unusually pleasant. You can read over some of the ones posted here to see some strange ones!