Perimenopause in your thirties: what are the symptoms to look out for?

Women can start to experience symptoms in their mid to late-30s, long before the menopause 

The symptoms of perimenopause are similar to those of menopause but can 'wax and wane'

Three out of ten Irish women who responded to a recent Boots Ireland survey on menopause didn't know what perimenopause is, while four out of ten felt the subject was not treated seriously. So what is perimenopause, what are the symptoms to look out for and what support is out there?

What is perimenopause?