I'm nearly 43 and since being 41 my periods have changed. They are now so heavy to the point where on day 1 I'm constantly changing my pad. I now also feel extremely low for 3 days before my period is due. I never used to. To the point where I really can't get out of bed and have to be pretty much forced. I literally feel for those 3-5 days like life is terrible. I don't know much about menopause but does this sound like the start?