I haven't been on prednisone since my PMR went into remission back in 2018 but I was fortunate enough not to have had any of the dizziness/vertigo side effects. There are other members that have commented about the side effects and hopefully will share their experiences with you. While you wait, here is a search of other members comments that have mentioned dizziness and other side effects from prednisone - https://connect.mayoclinic.org/search/comments/?search=prednisone%20side%20effects%20%20dizziness.

There are also many discussions on prednisone side effects - https://connect.mayoclinic.org/search/discussions/?search=prednisone%20side%20effects%20%20%20.