Hi, Sounds like you are having some serious problems, thanks for the question:
I am not 100% clear about the order of your symptoms as they are related to the chiro treatments. However, here are some important considerations...
Chiro treatment, while generally safe, has been associated with the infrequent complication of a neck vessel dissection (vessel wall
injury). The dissection can be very serious.
In the case of a
vertebral artery dissection one might end up with some of the symptoms that you are describing. If after a thorough exam the
neurologist feels that this is a possibility, a CT or MR exam would be appropriate.
I recommend emergent evaluation at the ER or ED. Best of luck.