Yes, pets have been known to detect health issues in their owners. Some pets, especially dogs, have a keen sense of smell and can detect changes in body odor that may be associated with certain health conditions such as seizures, low blood sugar levels in diabetics, or even certain types of cancer. Additionally, pets may also exhibit changes in behavior or body language when they sense that their owner is unwell. It's always important to pay attention to your pet's behavior as they may be trying to alert you to a health issue.