Peri menopause is the years leading to the final period = menopause, determined by being 12 months without a bleed. However, Nature may throw a curved ball in that we get a show or proper period at almost 12 months and then ..... we have to begin counting all over again

. Once in menopause that's it, however, hormone upheaval may still continue.
Cystitis [honeymoon symptoms] is usually due to intense activity in the whole vagina/vulval area, i.e. continued rubbing, fondling etc.. VA can mimic repeated urine infection-type symptoms really really well.

Be gentle with yourself and use appropriate treatments gently to ease symptoms.