An ambulance was called to Caroline Flack's home the day before she took her own life.
It is understood paramedics attended Flack 's flat in east London at 10.30pm on Valentine's Day.
A London Ambulance Service spokesman said: "We were called shortly after 22:30 on 14 February to a residential property on Northwold Road, N16.
"Crews attended and, following a clinical assessment, the person was not taken to hospital. Due to patient confidentiality we cannot comment further."
The former Love Island presenter, 40, was found dead on Saturday, the day after the ambulance crew attended her flat.
Her family's lawyer confirmed she took her own life.
Flack's friends have paid tribute to the star, who also presented The X Factor and the Xtra Factor, and spoken out against internet trolls and tabloid newspapers.
Tess Daly, presenter of Strictly Come Dancing, which Flack won in 2014, said she was "shocked and devastated", while her fellow presenter Claudia Winkleman described it as "heartbreaking news".
Laura Whitmore , who took over as Love Island's presenter after Flack was charged with assault for allegedly attacking her boyfriend, said "none of this makes sense".
She called for people to "be kind" as she attacked Twitter and tabloid papers "who create click bait, who demonise and tear down success".
Whitmore described her friend as "vivacious, loving and with a passion for life".
She added: "She had many struggles and wasn't perfect and she lived every mistake publicly under the scrutiny of the media."
Flack's boyfriend, Lewis Burton , posted a statement on Instagram on Sunday, saying his "heart is broken".
Her management has criticised prosecutors for pressing ahead with what it called her " show trial " after Burton said he did not support the assault case against her.
Francis Ridley, of Money Talent Management, said the Crown Prosecution Service should "look at themselves" for pursuing the case.
:: Anyone feeling emotionally distressed or suicidal can call Samaritans for help on 116 123 or email email@example.com in the UK. In the US, call the Samaritans branch in your area or 1 (800) 273-TALK.