Progesterone must effect everyone differently I think, before my hyst my I used Gyclogest and Crinone and never had dizziness.
I do remember having bouts of vertigo and dizziness before I used prescribed hormones.
Doctor diagnosed Vertigo.
Post menopause and about six year ago the BPPV started, just by turning over in bed, doctor told me it had nothing to do with hormones, I made a point of asking ( I use prescribed estrogen)
Men and women suffer from this.
Forgot to add that the side effects I had from large doses of progesterone were sleeping like a log, a sense or euphoria, putting on weight and made my breasts grow
