I have shared my withdrawal “journey” on this post.
Withdrawal from Sandomigran (Pizotifen) - #37 by Katharina?
I am still on 1.0 mg and have not withdrawn any further. I am currently suffering a bit of positional vertigo, but I think it is unrelated to the withdrawal because that was some time ago.
Sorry that your positional vertigo and nausea have come back. Hopefully they will disappear once your body got used to the new dosage.