A Herefordshire mother hanged herself at the BoomTown Fair after taking toxic levels of amphetamines bought at the festival, an inquest heard.

Beauty therapist Lisa Williamson stormed off in her pyjamas after a spat with her husband, in which she bit his hand.

She was found in a festival toilet block several hours later on the afternoon of August 9, and was confirmed to have died on her arrival at The Royal Hampshire County Hospital.

The Winchester inquest heard it had been the 31-year-old's first festival.

Tests found that Mrs Williamson had toxic levels of amphetamines in her blood, and that she'd also taken cocaine.

A post mortem examination concluded that she died of hanging, though pathologist Dr Hayley Burnley added: "The use of drugs previously would have no doubt affected her state of mind at the time."

Husband Darren Williamson said that while his partner of eight years had suffered from mild post natal depression after the birth of their children, she was usually "pretty fine".

They had arrived at the 38,000-strong festival near Winchester from their home in Bromyard, Herefordshire, on Thursday August 7, then camped and partied with friends.

Mr Williamson said he and his wife sometimes took drugs when they went out, but weren't addicts.

He said they had bought amphetamines after arriving at BoomTown and taken them for two days, barely sleeping at night and dancing to acts, including Shaggy.

The couple both took one gramme of the drug on the sweltering Friday night.

When they woke up around midday on the Saturday, Lisa's bag strap was tied around her neck, and she became aggressive when her husband tried to remove it.

"She bit me and pushed back at me. She said 'you're all out to get me'," said Mr Williamson, weeping.

"And then she stormed out of the tent.

"I thought she would just go and cool off, and then come back.”

Recording an open verdict, Senior Central Hampshire coroner Grahame Short said: “Lisa had been behaving strangely in the last hours of her life.“I think it was mainly the drugs which had affected her. I think that lack of sleep and the temperature she was in in the tent also affected her state of mind because she was dehydrated.”

A police spokesman told the Hampshire Chronicle that Mrs William’s death was not treated as suspicious.

He said: "We prepared a file of evidence for HM Coroner ahead of the inquest where a verdict was recorded.

"Having assessed the evidence and facts of the case, Hampshire Constabulary decided to pursue no further criminal investigation."

A spokesperson for BoomTown’s organisers said: “We take the safety and wellbeing of our festival attendees incredibly seriously.

“In January 2014 BoomTown Fair launched an extensive Drug Awareness campaign to help educate festival attendees on the physical and mental harm that taking drugs can result in, as well as working exceedingly closely with Hampshire Police to actively reduce the number of drugs that may be available onsite.”