The phrase "atypical symptoms" refers to signs or experiences that are not typical or common for a particular condition or illness. It means that the symptoms are unusual or different from what would normally be expected. Full definition
My recent post on rare diseases and pediatric pain clearly resonated with a number of people, prompting my immersion in the medical literature and speaking with some experts and patients about these topics and about the difficulties patients with atypical symptoms -LSB-...] (scientificamerican.com)
While the most common heart attack symptom is chest pain or discomfort for both sexes, women are more likely to have atypical symptoms such as shortness of breath, nausea or vomiting, and back or jaw pain. (sciencedaily.com)
Common problems such as acid reflux or constipation may lead to atypical symptoms in children with autism — for example, aggressive or self - injuring behavior. (sciencedaily.com)