Abnormal period and I have had enough! Could you please point me in the right direction?

I have had 3 pregnancies in the past. My first I carried to 35 weeks and all went fine. I returned to health fairly quickly (or my sort of health). I then got pregnant again within 3 months but unfortunately due to complications had no choice but to abort which destroyed me. Then I got pregnant again in 2007. With each pregnancy I have had an illness called Hyperemisis which is sever sickness and I was in hospital most weeks. Luckily I was already in hospital when I gave birth the 2nd time round because he was nearly 3 months premature. He is doing fine and is now 14 months old. However, I have never returned to full health. I have a history of aneamia so that's nothing new but my periods haven't been the same since Ihad my second son. After the delivery the doctors were very concerned as my heart rate rocketed and I lost a huge amount of blood but with my fear of needles ruling my thoughts I wouldn't allow them to do a blood transfusion. The nurses were also concerned that they hadn't gotten all of the placenta out of me and wanted to give me an injection to help it come out but again I said no because of my huge phobia. (Yes I know this is stupid). Ever since then my periods have always been late, never liek clockwork so I just have to wait for them to show up. I am also getting more pains now but always on the right side of my stomach. I actually get symptoms of periods now like moodiness and being emotional and getting hungry and getting really hot, I never had this before ever. The thing that is concerning me the most though and that I am tired of is the huge tennis ball sized lumps that I keep getting and I would stake my life on the fact that tehy are not just blood clots. I saw the placenta, I know what it looked like and these things that I keep getting look exactly the same. When I get them I also get the pushy feeling you do with pregnancy and it's making life a misery because it feels like I need to push it out all the time and it's so uncomfortable. I have no idea what's going on and I am sick of not knowing what is going on with my body, I just feel so out of tune with myself and I hate it. Any suggestions please?