Hormonal 8mths after baby.. Is there anything I can take?

I was wondering if anyone else has experience crazy hormones months after birth and what have you used to help it settle?

I was fine for about the first 6mths after my third baby, however I now find myself being very emotional & tearful (I burst into tears at ads or an ambulance going past w siren on!), low (actually NO) libido; anxious all the time; difficulty sleeping, tired & lethargic all the time, no weight loss but to be honest I'm so tired all the time I don't do anything.

I was wondering if there was anything natural that can help, I've heard (google search lol) vit b & evening primrose oil can help but have yet to get some. But I just wondered if anyone else has gone through this and what helped you?!

Much appreciated :)