I think you should be concerned. My mother used to have a lot of big clots for some months and she did not quite get it until she sow her gyno. A scan was done and was discovered that she had advanced fibroids which went an seen for a few years. After they were removed this stop. Her periods became normal but after 6 months she got her menopause she was also about year age.
Hello,
If you are concerned and you feel your bleeding is heavier, tell your gyn you want to be evaluated for new onset menorrhagia (heavy menstrual bleeding). She or he shouldn't have a problem pursuing that evaluation with you.
Best regards,
Dr. Downing