FRANKIE Bridge has admitted she's "struggling" with the festive season in a candid post about anxiety and depression.

The Saturdays singer has been open about her mental health over the years, and is an ambassador for mental health charity, Mind.

Taking to Instagram on Sunday, the 29-year-old posted a close up picture of herself lying in bed and told fans she wasn't finding the lull between Christmas and New Year easy.

She wrote: "So I know everyone is banging on about this whole Crombo-Limbo situation... but I’m genuinely struggling with it.

"I feel at a loss as to what I’m supposed to be doing... I can tell the boys are getting cabin fever... it’s a bit like the holiday blues and a Christmas come down all into one... but also the build up and suspense of New Years Eve... which then comes with the pressure of having the best night of the year!

"I want to work out because I know it will give me energy and make me feel mentally better... but I also want to lay in bed, ignore the world and eat biscuits all day... but I know that will make me feel even worse!"

Frankie - who has two sons with husband Wayne Bridge - added she wasn't really looking forward to her 30th birthday on January 14 because of how she is feeling.

She continued: "My depression always seems to make me feel worse at the times when we’re all supposed to be at our happiest... my good old 30th is on its way completely in denial about that one. funnily enough the saving grace is that I have a house full of people tomorrow night... so I’m going to have to get up at some point to go to the shop and to cook...

"And having a house full of awesome people will definitely lift my spirits... I know that will make me feel better.

"Our life has no strict routine, but it’s funny that when it’s gone. I realise I need it... I also know that I will most probably snap out of this funk as quickly as I got into it... the beauty of living with Depression and Anxiety. #depression #truth #getupfrankiebridge".