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Fever, Diabetes, Blood Pressure, Thyroid, PCOS and Dengue Symptoms

By SIH India A source-linked reading note

Symptoms can have many causes. This guide explains what trusted health sources say and why diagnosis, blood sugar ranges and blood pressure targets need clinical context.

Fever, COVID-19 and dengue symptoms

Fever is a symptom, not a diagnosis. COVID-19 can cause fever, chills and sore throat, among other symptoms; dengue can cause high fever, headache, pain behind the eyes, muscle or joint pain, nausea, vomiting, swollen glands or rash. Several illnesses can look similar, so a symptom list cannot confirm the cause.

WHO identifies warning signs of severe dengue such as severe abdominal pain, persistent vomiting, rapid breathing, bleeding, marked fatigue or restlessness, blood in vomit or stool, extreme thirst, pale or cold skin, and weakness. Seek urgent medical care if severe warning signs appear, including after fever falls.

Diabetes symptoms and blood sugar normal range

Possible diabetes symptoms include feeling very thirsty, urinating more often, blurred vision, tiredness and unintended weight loss. Some people with type 2 diabetes may have mild symptoms for a long time. A blood glucose or HbA1c test and a healthcare professional's assessment are needed to diagnose diabetes.

Searches for “sugar level normal range” often expect one number. Results can depend on the test, timing, pregnancy, age, medicines and the person's care plan. Use the laboratory's report and the clinician's interpretation rather than changing treatment based on a general internet chart.

Blood pressure normal range by age

Blood pressure uses two readings: systolic and diastolic. WHO describes hypertension using repeated readings at or above its stated threshold, but a diagnosis and an individual's treatment target depend on clinical context. A single reading, or a simple “normal range by age” chart, cannot diagnose or rule out a problem.

Use a correctly fitted monitor according to its instructions and discuss repeated high or unusual readings with a healthcare professional. Seek urgent care for severe symptoms such as chest pain, breathing difficulty, confusion or sudden weakness.

Thyroid symptoms, PCOD or PCOS, kidney stones and fatty liver

Thyroid conditions can cause symptoms such as tiredness, weight change, feeling unusually hot or cold, mood changes, or a fast heartbeat. These symptoms overlap with other conditions; blood tests and clinical assessment are used to investigate thyroid problems.

PCOS may involve irregular periods, acne, excess facial or body hair, or difficulty becoming pregnant, but symptoms differ. “PCOD” is also a common search term; the medical sources cited here describe PCOS, and a clinician should assess what diagnosis applies.

Kidney stones can cause sharp pain in the back, side, lower abdomen or groin, blood in urine, pain while urinating, nausea or vomiting. Treatment depends on the stone and the person's condition. Fatty liver may have few or no symptoms; diagnosis can require medical history, blood tests or imaging. Do not self-diagnose from symptoms or use this page to select treatment.

Sources and further reading

This page is an original summary, not a copy of the articles below. The original publishers retain their articles and materials.

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