I haven't gone through menopause yet, but this has helped me tremendously for my period. I drink red raspberry leaf tea. It's kind of icky tasting, but they also have it in capsule form.
It helps balance hormones and is good for any woman in any stage of life to take. It's good for periods, pregnancy, and menopause. It lessens or gets rid of mood swings (it takes away my PMS, which can get pretty extreme). It lightens bleeding for my periods/post baby. It gets rid of my cramps just like taking meds. It helped me conceive my son by balancing my hormones. It's AWESOME stuff. I am definitely going to be taking it when I'm dealing with menopause because of how it balances hormones, helps with bleeding, helps with cramping, and helps with womanly stuff in general. I've never used anything natural that has worked as well as this stuff.
My only other question is, are you sure you are going through menopause? It almost seems like you might have PCOS, which is something my sister has. She has really irregular periods - sometimes only once or twice a year, but when she has them, they are usually really long and heavy and she passes clots - more than normal. She has bad bleeding.
No matter what, though, I highly, highly recommend you look into taking red raspberry leaf tea (herbal). If you can, you want to drink it every day, three times a day (or take the capsules that much) that will give you the most benefit.
Good luck!