Definitely sounds like to me you have all the symptoms of a classic Spiritual awakening. The awakening is a journey of consciousness expansion that takes place over time. It is a journey into the deepest realms of the psyche what is happening is you are remembering your innate self and deepest memories. Your shift in belief was no accident it brought you into your own Dark night of the soul, where you started questioning reality and your place within life. This is all quite normal deep down it means you are waking up to True Reality.
The numbers 11:11 333 444 555 12:12 etc. these are all Master numbers they serve as subconscious archetypal symbols that trigger a response within us that unlocks our long term memory. Watch your thoughts during these occurrences they will help guide you.
As for feeling like an Alien or Vampire when you were younger, our younger souls are substantially more connected to the Spirit realm in general which is why you felt this way. It’s a deep part of you, that has been hidden for centuries coming to the surface.
I am not sure on the Christian woman other than she was probably Channeling to you a personal message you needed to hear. We are all important at this time because we are helping evolve the consciousness of humanity. All of us who are awakening are very important at this time, your energy is contributing to the unified field just by being alive!
You should look into researching the Ascension, indigo children, spiritual awakening and everything that your intuition guides you to will help bring you in the best direction for your path.
Here’s a list of ascension symptoms that one starts to experience as they awaken:
Basically i could write a book here but honestly this is for you to explore and learn about yourself!
sending love <3