A young mum has been found dead by her five-year-old-son after the coronavirus lockdown "broke her".
Katie Simms, 32, was found unresponsive in the living room of her home in Kettering, Northants on September 28 by her only son Archie.
Officers from Northamptonshire Police attended the scene and have said the death is not being treated as suspicious while a report is being prepared for the coroner.
Katie's brother, David, told Northants Live she had been "struggling" for a number of years since the death of their brother Barry Gunn in 2015.
Speaking about his older brother, David, who is in the army himself, said: "Back in 2015 my brother, who served in the Royal Anglian's, he suffered from PTSD after he returned from Sierra Leone.
"He was quite troubled with that, he tried to take his own life by taking an overdose, he then passed away in hospital a few months later, he'd been put on a ventilator.
"She took that quite bad, he was only 40 at the time.
"He did a tour out in Sierra Leone and what he saw out there really scarred him and he couldn't cope with his demons."
David, a father-of-two who now lives in Coalville, Leicestershire, said his sister was always a caring and outgoing person, but after their brother died she found leaving the house difficult.
He also said the coronavirus lockdown "broke her" as she could not visit their parents.
David, 40, continued: "She was very stubborn, but she was quite outgoing, loved going out to socialise.
"But since my brother passed she shut herself away and she ended up getting a bit of a phobia of not really going outside.
"And I think Covid broke her, to be honest. She couldn't get to visit my mum, because she's got breathing difficulties so couldn't leave the house to visit.
"My dad was diagnosed with bowel cancer, he's now got a tumour so can't travel, so lockdown has basically broken us all."
He added that he broke down when he heard that his sister had died.
David added: "I was comforted by my management, they put things in place to allow me to go home on compassionate leave.
"I don't think it's sunk in with me, I'm quite a hard-headed person. We couldn't help her as best we could, it feels like we've failed."
A GoFundMe page has been set up to raise money for Miss Simms' funeral.
Her brother said any extra funds will be put into a trust fund to help support young Archie in the future. Donations can be made here.
For emotional support, you can call the Samaritans 24-hour helpline on 116 123, email [email protected], visit a Samaritans branch in person or go to the Samaritans website.