Dysmenorrhea: This is the most common cause of painful periods, characterized by crampy lower abdominal pain during menstruation. The increase in pain over the past few months could be due to worsening of the condition or increased awareness of the symptoms.

Endometriosis: A condition where tissue similar to the lining of the uterus grows outside the uterus, leading to painful periods, heavy bleeding, and infertility. The worsening pain could be due to the progression of the disease.
Adenomyosis: A condition where tissue similar to the lining of the uterus grows into the muscular wall of the uterus, leading to painful periods and heavy bleeding.
Uterine Fibroids: Non-cancerous growths in the uterus that can cause painful periods, heavy bleeding, and pressure on surrounding organs.
Pelvic Inflammatory Disease (PID): An infection of the female reproductive organs that can cause painful periods, pelvic pain, and infertility.

Ectopic Pregnancy: A pregnancy that develops outside the uterus, which can cause severe abdominal pain, vaginal bleeding, and is life-threatening if not treated promptly.
Ovarian Torsion: A condition where the ovary twists around its ligaments, cutting off blood supply, which can cause severe abdominal pain and is an emergency if not treated promptly.
Appendicitis: Inflammation of the appendix, which can cause severe abdominal pain, nausea, and vomiting, and is an emergency if not treated promptly.

Endometrial Cancer: A type of cancer that affects the lining of the uterus, which can cause painful periods, heavy bleeding, and abnormal vaginal discharge.
Uterine Sarcoma: A rare type of cancer that affects the muscular wall of the uterus, which can cause painful periods, heavy bleeding, and pelvic pain.
Pelvic Congestion Syndrome: A condition where the veins in the pelvic area become enlarged, leading to chronic pelvic pain, which can worsen during periods.