Dehydration is the most common cause of decreased urine output. Typically, dehydration occurs when you’re ill with diarrhea, vomiting, or another illness and can’t replace the fluids that you’re losing. When this happens, your kidneys retain as much fluid as possible.
Other causes of dry mouth include dehydration, radiation treatments to treat cancerous tumors of the head and neck, salivary gland diseases, removal of salivary glands, diabetes, smoking, using chewing tobacco, hormonal imbalances, sinusitis, mouth breathing, sleep apnea, cystic fibrosis, mumps, hypothyroidism, and autoimmune disorders such as Sjögren's syndrome, rheumatoid arthritis, HIV/AIDS, and systemic lupus erythematosus.
Even walking can sometimes seem excruciating, depending on headache and dehydration severity. Monitor other Symptoms. Headaches caused by dehydration do not happen in isolation. There will usually be coinciding dehydration symptoms such as dry mouth, fatigue, increased blood pressure, and nausea to name a few.
Excessive thirst is one of the major symptoms. If you have diabetes insipidus, you may also have: Dehydration; The urge to pee often; Dry Mouth. When your mouth feels very dry, it can make you thirsty. Usually, it happens because the glands in your mouth make less saliva.
Sleep Disorders That Make You Tired There are a number of sleep disorders which undermine the quality and quantity of your sleep. It’s important to distinguish between them and seek treatment because you need to get good sleep if you are recovering from fatigue.