I am 49 years old and did not have a period for 17 months. In Dec I started to bleed I went for a sonogam it said that I have a complex solid lesion with sept. I was sent for an MRI and it showed that there was fluid in it. We are going to wait and get another sonogram end of Feb. I did have a blood test and biopsy and both were normal . I started to bleed again on Jan 29th 2011. Should I be concered that I am bleeding again and should I let the doctor know?