I’m 47 and experiencing changes in my periods. This is the second time this has happened to me. I have been bleeding very lightly for about 3 weeks now, sometimes hot at night - is this normal?

Yes, this is very common in the run up to the menopause. You could try Menopause Support which can be taken before the menopause to help support your hormonal system and may also help with the heat issue.

Make sure that you are taking care of yourself, eat well and try and keep stress levels down.  If your periods continue for longer it is best to discuss this with your doctor.