I've been having hot flushes since I was... er... late teens.
That's 20 years.
But then my hormones have been screwed up for all of that time.
And the hot flushes definitely get worse when my BG levels are higher.
So hot flushes are not necessarily caused by menopause.
And they can definitely be linked to diabetes.
But I haven't ever tested my BG while 'flushing' because it always happens either in the middle of the night, or at some other totally inconvenient time!
I think I remember someone, possibly
@Mud Island Dweller saying that they thought menopause had started, but it turned out to be diabetes.
Sorry Muddy, if it wasn't you!