Painful periods, during sex and pooing.

I have been experiencing worsening periods alongside other symptoms for a period of six months. Period pain has increased and ovary pain in particular has become more prevalent over time. The last three months have been excruciating for me and have stopped me leaving my home or moving around due to the discomfort. Pain is severe in both ovaries and comes and goes throughout the majority of my cycle. It ranges from dull aches to sharp pain that can be so severe I need to sit down and wait for it to pass. This last period (which has just ended) has been the worst for pain and heavy bleeding. It also started, stopped, and then started again, changing from dark brown blood to fresh red blood which has never happened before. I experienced brown discharge before my period for two months now. I have had ovary pain throughout the entire month alongside menstrual type cramping and also pain before having a bowel movement although I have had this for a few years now and is not every time I have