It's not triggered by movement like vertigo would be. But yes, I feel exactly like you describe - like sometimes my brain is buzzing inside my skull. Lately, too much multi tasking because multiple "systems" (watching and listening to multiple people talk at once, reading and listening to background noise, walking and talking/ focusing on an object visually/ looking around, focusing back and forth on different things like switching between TV and phone) makes the balance/ dizziness much worse, ear ringing, and head pressure/ ear pressure, and that brain shaking feeling. Scrolling or reading on my phone is also hard.
My PT has me doing exercises where I walk in a line (loosely) and follow my finger from left to right for 1 min as fast as I can tolerate, standing on one foot with eyes closed (VERY HARD for me), and one foot with eyes open while following my finger left to right.

Yes. I can relate. This is consistent with my symptoms during the first month after diagnosis but the dizziness is now intermittent and also certain movements and activities do worsen it. Initially, like you, the light headedness was so awful I continuously felt I was on the verge of vomiting and nothing made it better or worse. It just was as bad as it was. It’s been 2 1/2 months since I was diagnosed with COVID, and there are times when it can still feel debilitating but overall the duration of my lightheaded is shorter and more manageable.

Thankful I found this thread! I have had Covid 3 times and since last July 2022 I have been experiencing the Brain fog, dizziness, ear issues, anxiety, just down right torture. Driving is super hard and noises can be excruciating. I’ve been to ENT, several Drs, emergency rooms, PT etc. all they say is long Covid. My last Dr said she would like to look into mental illness. I’m offended by that because I know this all started after Covid.

Has anyone gotten better?