The former "Bachelor" star, 36, revealed she was suffering from severe cramping and stomach pain after she returned home while her husband and three children weren't affected.
“There was one report that was out that I was dead,” Rycroft told Entertainment Tonight. “My parents were frantically calling me that morning going, ‘We are getting people calling with their condolences.’ Like, ‘Mom, I'm on the phone with you. I'm in my bed.”
"I was never under the care of a nurse. I was never dying, I don't think. I felt like it a few times but I was never dying," she added.
Rycroft's rep confirmed to ET that she was being tested for parasites and any other infections, thinking it was possibly food related.
On June 19, she updated her fans about her condition saying there was still no diagnosis but is on "new meds" that "are making me feel so much better!!!”
"Wanted to thank everyone for their thoughts and prayers lately! I am happy to say that I am back to normal," she wrote on social media.
The hotel where Rycroft stayed, the Nickelodeon Hotel & Resort in Punta Cana, announced it's launching an investigation into what caused her illness. A representative for the resort told TMZ that they're in contact with the reality TV star and have hired an outside firm to look into the establishment's cleaning and sanitary practices.
The staff is taking "all possible measures to ensure a safe and healthy vacation environment, exceeding preventative measures and enforcing strict sanitation protocols," the hotel rep added.
"Shark Tank" star Barbara Corcoran revealed her brother died while on vacation in the Dominican Republic in late April but he had a pre-existing heart condition and "died of natural causes," according to Corcoran.