Speaking at the launch of her new hair colour remover 'ColourB4', Katie said: 'trust me, if everyone knew what was going on they'd be like "how the hell is she sitting here today" because it's that bad.'
'But I am here today and I'm glad I'm here today and looking like a big t**. Literally,' added the star.
The 36-year-old added that she had a 's*** personal life' at the moment, due to the news that husband Kieran has been having a sexual affair with her 49-year-old best friend, whilst Katie is six months pregnant with his child.
'Before all that s*** with my personal life, it was supposed to be a good year for me.'
But Katie remained positive that the work projects she has lined up over the next year will be enough to keep her busy - and her mind of her failed marriage.
The star wrote earlier in the week of how she doesn't think she'll ever get the 'complete truth' from her 27-year-old husband, but insists she is too worried for her unborn baby to care.
On May 7 Katie revealed via her Twitter page that her husband had been cheating on her for 8 months. She announced they would be divorcing and named and shamed her former pal Jane Pountney as the other woman.