From your presentation, it sounds more like you could be suffering from an infection more than vaginal atrophy
(which would have various other symptoms as well).
I would thus advise a urine analysis, physical examination and a vaginal swab analysis (required only to confirm any suspected infections).
You have not mentioned your age or sexual status either, which would have been really helpful to know. But for now, with the provided information, please go ahead with the above investigations.
Hope this helps.