I Am A 48 Years Old And Have Been On

I am a 48 years old and have been on my period for 14 days. Last month I had a shot because my hand eczema had flared up really bad. The PA told me that the shot could make my period heavier or it may make it lighter. She didnt say anything about longer. So I am a little concerned because today is the 14th day and it is hard and I am passing very large clots.