It's good that you are not getting any other symptoms except for the hot flashes. I know even that can be concerning at times. I am also in my menopause phase and the only symptom I have is the hot flashes, though it's not that bad, but there are times when my sleep gets disturbed because of it.
Yes, I think that for our age it is normal, since it is a symptom of the climacteric, in my environment my friends and family also suffer from it, so it must be normal. Thank you for reading and commenting on my post.