Oral thrush or burned gums

I have a vaginal candida flare up and a sore throat that's actually scrathy, not sore. Over the past few days I've had white spots on my gums only where my gums meet my teeth that when I rub off looks like "skin" (onion peel really) and doesn't come back. I immediately thought thrush. Now, when I got to thinking about it, I recently started brushing (last couple of weeks) with undiluted 3% H2O2 (Hydrogen-Peroxid) and was wondering if my real problem is just burned gums. There is nothing on the inside of my cheeks, back of throat or my tongue. What do you think? The soreness after wiping off the places went away by morning.