Former Simply Red star Mick Hucknall is suffering "mood swings" and "bloating" as he battles a thyroid condition.

The British singer has refused to go into detail about his illness, but reveals he was given the diagnosis by doctors several months ago and has been dealing with a series of nasty side-effects.

However, Hucknall is determined to make a return to full fitness.

He tells Britain's Weekend magazine, "A few months ago I was diagnosed with a thyroid condition that's led to side effects like bloating and mood swings. They say I'm going to make a full recovery and I'm determined to stay healthy."