Menopause-like symptoms, such as hot flushes, after all this time may be an indication of adrenal stress rather than hormonal.
In this situation, it is very important to do supportive work for the adrenals such as taking a high strength multi-vitamin with extra magnesium.
Liquorice tea can be helpful as well.
I would also suggest acupuncture as it can be very effective for adrenal stress.
Studies have shown that daily relaxation can reduce symptoms quickly, so make 30 minutes of relaxation a day a priority.
Check your diet too - avoid caffeine and high salt and sugar foods as these can all trigger the adrenals, contributing to symptoms.
Low iron and low thyroid can also cause similar symptoms so it is a good idea to ask your doctor to test for these if they haven't done so already.
In the meantime, you may find sage tablets helpful for the flushes.