Search results
Results from the WOW.Com Content Network
The theory explains why labyrinthine-defective individuals are immune to motion sickness; [31] [32] why symptoms emerge when undergoing various body-head accelerations; why combinations of voluntary and reflexive eye movements may challenge the proper operation of Sherrington's Law, and why many drugs that suppress eye movements also serve to ...
The biggest differences between criteria are whether post-exertional malaise (PEM) is required, and the number of symptoms needed. [ 1 ] The pathology of ME/CFS is poorly understood, and it can be a difficult condition to diagnose because there is no standard test, many symptoms are non-specific, and because doctors and patients may be ...
The hallmark feature of ME/CFS is a worsening of symptoms after exertion, known as post-exertional malaise or post-exertional symptom exacerbation. [6] PEM involves increased fatigue and is disabling. It can also include flu-like symptoms, pain, cognitive difficulties, gastrointestinal issues, nausea, and sleep problems. [10]: 6
PAIS symptoms are often non-specific and similar despite diverse prior infections. Symptoms commonly included in definitions of PAIS include post-exertional malaise, severe fatigue, neurocognitive and sensory symptoms, flu-like symptoms, unrefreshing sleep, muscle pain, and joint pain. Symptoms can vary among affected people. [1]
Nausea is a diffuse sensation of unease and discomfort, sometimes perceived as an urge to vomit. [1] It can be a debilitating symptom if prolonged and has been described as placing discomfort on the chest, abdomen, or back of the throat. [2] Over 30 definitions of nausea were proposed in a 2011 book on the topic. [3]
Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy ...
Influenza-like illness (ILI), also known as flu-like syndrome or flu-like symptoms, is a medical diagnosis of possible influenza or other illness causing a set of common symptoms. These include fever, shivering , chills , malaise , dry cough , loss of appetite , body aches, nausea , and sneezing typically in connection with a sudden onset of ...
Alcohol, which can be partially oxidized into acetaldehyde that causes the symptoms of hangover, including nausea, vomiting, shortness of breath, and fast heart rate. [22] Opioids; Selective serotonin reuptake inhibitors; Many chemotherapy drugs; Some entheogens (such as peyote or ayahuasca) High altitude: Altitude sickness [23]