Purple= Crown Chakra...looks like your working on another area.

I am just a bit confussed. Perhaps your awakening happened without real notice. Or you are clearing something in your crown to get ready for the awakening so you can have a better experience. I sure hope so. The snake is nothing to take lightly. It will take a lot from you if you are not ready. The way you are describing seems that the crown is trying to connect to your throat. Are you holding something in? This I am not sure of but it seems like Rev Vesta said there is some kind of healing. Would explain the pusling downward, is spirit, higher self trying to reach you? Trying to remove blockage? I suggest looking into the throat chakra as well.
Throat Chakra is where I am curently working at.
First Chakra=Red-Root Chakra
Second Chakra=Orange-Lower Abdomon to navel
Third Chakra= Yellow-Solar Plex/ Above Belly Button
Fourth Chakra= Green-Center of Chest/Heart
Fifth Chakra=Blue-Throat
Sixth Chakra=Indigo-3rd Eye
Seventh Chakra=Purple-Crown
Here is a link that is explains a little about the purple. Not too much in detail though. That I suggest you go and seek out.

So now you know purple/violet deals with the Crown Chakra, hope it narrows your search a bit. I understand we are all pushed for time. Not like it used to be reguarding our studies. Best wishes to you.
Safe Journey
sensationalcolor.com/messages-meanings/color-meaning-symbolism-and-psychology/all-about-the-color-purple.html
Came back to add- Sometimes it isn't quite what we think at first. One of the things that does trip me up at times when I look into what I think, only to be guided by that inner voice. So when it stopped at the throat that signaled to me that there is a blockage there. Also add that not always do I see colors with energy. Perhaps a bit color blind myself. So not to get discouraged for others who may read this. In time, with practice, and patience the mystery starts to unravel. Clarity will be found.