Less than four hours before her husband, Ryan Widmer, called 911 and reported finding his wife drowned, Sarah Widmer had told a friend that her head and neck hurt - and the week before her death, she was "doubled over" in pain at work, witnesses testified Friday, day 10 of Widmer's murder retrial.

The testimony was offered to support defense lawyers' claims that Sarah Widmer, 24, may have suffered a medical problem that contributed to her drowning in her Hamilton Township bathtub on Aug. 11, 2008.

Around 7 p.m. that night, a Monday, dental hygienist Amy Karabaic of Strongsville, Ohio, had just gotten off work and decided to return a call to her friend.

During that conversation, Sarah Widmer "said she had a headache and her neck and shoulders were bothering her," Karabaic testified.

The conversation was cut short because, "I was driving, and she was tired ... we decided to talk on Friday when we both had (work) off," Karabaic said.

But that next conversation never happened because Sarah Widmer drowned in her Hamilton Township bathtub that night. Her husband called 911 just before 11 p.m. and said, "My wife fell asleep in the bathtub and I think she's dead."