Credit: SWNS / Abi Feltham

An ex-addict was diagnosed with a brain tumour after mistaking her brain fog for caffeine withdrawal.

Abi Feltham, 36, has been sober for four years after dealing with alcohol and drug addiction since she was 14 years old.

She started realising she was drinking a lot of caffeine in November 2023 - having up to 12 cups of coffee a day and reduced her intake.

Abi started having headaches, nausea and brain fog but put it down to caffeine withdrawal.