Often I pass huge bloody clots but when I use a tampon nothing's on it. My tubes have been tied 13 years. Periods are a nightmare. Sometimes I use ultra super size tampons with a pad,and stand up off toilet and can't make it out the door without soaking threw ,like major flowing. Periods last about 3 days,but sometimes I skip 2-4 months without having one. I'm 44 yrs old and last year I experienced the worst stomach pain ever,and after trips by ambulance to 4 different hospitals,they used a scope and discovered rupturing cyst on my ovaries. I'm not in pain now,but these black/ dark reddish clots are getting bigger and my stomach looks like I'm 7 months pregnant and never goes down. I'm afraid it's more cyst,tumor,or even cancer. I haven't seen a Dr since the rupturing cyst last year around Nov. Has anyone ever experienced this before. ? I don't have female friends and my mother has passed,so I haven't had any advise or opinions.