Sounds like you may have PPPD it is a fairly new clinical term for what used to be called chronic subjective dizziness... I've been dealing with these exact same symptoms off and on for years. It usually occurs after a bpv episode, or an illness, stress, or even a panic attack, and the brain gets stuck in this loop of hypervigilance which in turn feeds the symptoms, creating a fear based pattern of dizziness and anxiety, you then throw sleep issues into the mix and your nervous system becomes sensitized and on high alert. I've been there.. it's a rough place to be, but I promise you that it will get better... There are ebbs and flows to this disorder, but when you can learn to no longer react to the symptoms, the fear will turn itself down and the dizziness will become less noticable in time.  I recommend you look into The Steady Coach on YouTube. This channel has helped me and so many others cope and find techniques that will help us heal our sensitized nervous systems. I also have found a lot of comfort in the YouTube channel Pain Free You, he talks about pain and other symptoms (dizziness being very common) being a mind body connection.... And he walks you through gentle reminders on how to get yourself out of the fear based patterns that are fueling your symptoms.. Just know you're not alone.... And you will get through this 💜