Vertigo can come from several different causes. One often misunderstood, misdiagnosed, and just flat out missed types of vertigo is cervicogenic vertigo. Cervicogenic vertigo is vertigo that is caused by an issue from the cervical spine, or neck.
Here's what we know:
There's a neuromechanical relationship between the upper cervical spine(the two vertebrae C1 and C2 just below the base of the skull) and function of the brainstem. The brainstem plays an important role in signalling neurological information to the inner ear.
If this neurological information is interfered with at the brainstem level by the upper cervical spine, it can create vertigo symptoms that won't show with standard medical testing, such as blood work or MRI.
Don't let any medical professional tell you that vertigo "can't come from the neck".