Washington DC, Oct. 28 -- Singer Demi Lovato has reassured fans about her health after a brief hospital visit following an apparent allergic reaction, which she speculated could have been triggered by passionfruit or sushi, according to People.

The 34-year-old singer shared a photograph on her Instagram Stories showing an intravenous (IV) line in her arm and a hospital bracelet around her wrist. She later deleted the post after revealing that she had been discharged from the hospital.

"Soooooo i'm either allergic to passionfruit or sushi now!" Lovato wrote in the now-deleted post. She followed it up with another message, which was also subsequently deleted, saying, "i'm fine!!"

The health update comes shortly after the Grammy-nominated...