ONE of Britain's best young sailors killed herself without any sign or warning, an inquest heard.

Jess Eales was found hanged in the New Forest the day after her 17th birthday which she had celebrated with close friends.

Now her family want an anti-acne drug she was using, Dianette, investigated as it is known to cause depression as a side effect.

And the inquest also heard friends noticed she had become quiet during her birthday meal after not hearing from a boy she met in Portugal while competing for Great Britain days before her death.

But both friends and family alike said the Royal Lymington Yacht Club member was a talented, high achieving and happy girl who gave no indication she would take her own life.

In a statement friend and fellow sailor Jessica Hammett, of Hayling Island, said: "Jess was a popular girl at the sailing club and had a lot of friends. She was also really clever."

Jessica, 17, who was one of three friends to celebrate Jess' birthday, added: "I could tell she was disappointed she had not heard from the boy and she kept checking her phone but she still seemed happy.

"At one point she went quiet and went to the toilet for five minutes but we knew she liked time on her own and didn't think much of it."

Jessica stayed the night in the family home in Northover Road, Pennington, near Lymington, and heard Jess leave on an early bike ride at around 7am on July 31.

She was found at around 9.30am that morning by a dog walker in woodland near Shirley Holms car park in nearby Sway.

But when she did not return it prompted a family search of the area until police arrived at their home, described as "an experience that drives fear into any parent" in a statement by her father Nicholas.

He said: "Jess excelled throughout infant, junior and secondary school and Brockenhurst College. Her total dedication, commitment and sheer hard work became a priority in her life.

"The highlight was when she was chosen to represent her country and she described Portugal as the best two weeks of her life."

He added the family knew of her relationship and were not concerned and they were more worried about side effects of Dianette.

Mr Eales added: "The family has asked this drug be yellow-flagged as a result."

But Central Hampshire coroner Grahame Short ruled out the drug's involvement in her death as she had been taking it for six months without showing any signs of depression.

A European Medicines Agency review in 2013 also ruled the benefits of the drug outweigh the risks.

Jessica had also struggled with with weight loss but had been assessed by mental health services in 2011 and was not diagnosed with an eating disorder.

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She also left a note telling her family she was sorry and she loved them "with all her heart".

Recording a verdict of suicide, Mr Short said: "I can understand that her parents have been wracking their brains to try to understand why she did this but we should not underestimate the pressures on teenagers these days, particularly high achievers like Jess.

"The sad part is she felt unable to share these concerns with friends and family before she reached this decision. It is a tragedy for all concerned."

The inquest heard Jess had aspirations of studying science and technology at university while continuing her sailing.

Her achievements included being named on the RLYC roll of honour four times and winning gold at the Royal Yachting Association youth championships in April 2014.

She is survived by father Nicholas, mother Annette and 15-year old brother James.