I did have irregular periods due to a higher than average level of estrogen. I'm sure they did blood work that showed that? If not, that's easy to do. I also had thyroid issues and combined, those two factors made me have periods every 3 to 4 months! Such a pain that was! I was in my 20's though so wasn't worried about menopause like I would be now. For whatever reason, women with high levels of estrogen are MORE likely to have candida or yeast overgrowth. There is even something they call estrogen dominance and it is absolutely associated with frequent yeast infections. They may try to stabilize your hormones or get them in a little better balance. There are many natural 'ideas' to reducing estrogen such as organic diets, eat more fiber, include flax seed in your diet, eat sulfuric foods (onions, garlic, leafy green vegetables) which improves liver function and can help estrogen levels be more normal, eat more broccoli, cauliflower, and brussels sprouts, eat red grapes, drink green tea, etc. I kid you not, these are ways to help normalize estrogen that people say are effective.
Too much estrogen is pretty rare for menopause as you usually have the opposite. Are you of an age in which you are worried about menopause?
For yeast, cut down on sugar, take a daily probiotic either pill form or drink one of the smoothies, eat one of the probiotic yogurts. Wear cotton undies and once in a while sleep with no underwear to 'air' out. I like the one day MOnostat ovule to treat it.
Anyway, many women, even young ones, will get yeast infections around the time or right after their period due to estrogen increasing and then decreasing. It's definitely known to be related.
Let us know what your doctor says you can do! good luck