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If these changes are present along with change in your period bleeding pattern and duration, then these are not normal. If these are associated with your menstrual cycles right from the time when you started having them, then it might be considered as normal. However get a thorough examination done by your gynecologist (not GP) when they appear the next time to see what could be causing them. Get hormonal tests and ultrasound scan done if needed to look for any abnormalities.
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