I get extreme dizzy every so often as well. Maybe like 4 times this past year. Last 3 months none, but occassionally light headedness. Like the top of head is heavy. I do have ETD which my ent said cud be a cause.. (inner ear) but when these attacks hit me, it puts me in bed unable to get up without assistance for 3 days as a usual. My reg dr said vertigo. Not sure about that either. I haven't been to a neuro, but if anothr severe attack hits, I will def be going to see one.
Hope u get answers soon. My neighbor, in her 80s, also had bleeding on her brain. After several mri they concluded it had stopped and told her all was now ok..
Does your heart rate increase rapidly when you're upright ? If these episodes persist I would suggest seeing a neurologist . Dysautonomia disorders , like POTS or cardiovagal dysfunction can be assessed.