A WOMAN says an agonising period condition left her looking 'five months' pregnant and unable to even have sex with her boyfriend.

But she claims doctors 'gas-lit' her into thinking it was irritable bowel syndrome (IBS).

Sarah Mahon had suffered with heavy periods as a teen but over the last two years began to experience agonising cramps and digestion complaints.

The 29-year-old was 'constantly nauseous and bloated' but claims doctors put it down to IBS and advised her to change her diet.

However, Sarah's flare-ups continued - becoming so excruciating at times she was left unable to walk and bed-bound for hours due to the pain.

Shocking photos show Sarah's stomach looking so bloated it resembled that of a heavily pregnant woman - often for days at a time.

Sarah, who works as an ani

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