What Causes Painful Menstruation?

My sister went a gynecologist because she was going through menopause and all of a sudden had very painful periods (2 of them). They said she had a spot on her cervix, but did a biopsy and said was fine. Then they said she had a shadow on her mammogram, but said it was nothing. She also has a lump that has grown on the back side of her shoulder. Her other symptoms are fatigue and she is a very active person, getting sick easily and just doesn t feel herself. She also has been getting tingly hands and feet and has had migraines for years. The gyno said just get a family doc, but told her to come back in 6 months for an ultrasound. I am very concerned.