Although DDAVP is safely used in children for enuresis, we have been concerned about the risk of hyponatremia in patients told to drink free water copiously. Midodrine is a peripheral α-1 agonist that serves as a vasoconstrictor. [web.archive.org]

The prevalence in the UK is unknown 4 but probably under-estimated due to overlap with other pathologies such as chronic fatigue, post-viral syndromes, and limited availability of knowledgeable healthcare personnel. 7 NON-SPECIFIC SYMPTOMS A plethora [doi.org]

viral illness.[1] It may also be associated with physical deconditioning or chronic fatigue syndrome.[8] During viral illness or prolonged bed rest, the body may become conditioned to orthostatic intolerance and excitability of the central nervous system [en.wikipedia.org]

Patients are characterized by skin hyperextensibility, joint hypermobility, and fragile connective tissue [ 34 •]. [doi.org]

Manifestations include impairments of vegetative functions including the maintenance of blood pressure; heart rate; pupil function; sweating; reproductive and urinary physiology; and digestion Your autonomic nervous system is the part of your nervous [icd9data.com]

[…] could alternate between sweating too much and not sweating enough digestive difficulties, such as a loss of appetite, bloating, diarrhea, constipation, or difficulty swallowing urinary problems, such as difficulty starting urination, incontinence, and [healthline.com]

"Regional variations in transepidermal water loss, eccrine sweat gland density, sweat secretion rates and electrolyte composition in resting and exercising humans". Extreme Physiology & Medicine. 2 (1): 4. doi:10.1186/2046-7648-2-4. PMC 3710196. [en.wikipedia.org]

Causes include vomiting, excessive sweating, diarrhea, burns, diuretic use, and kidney failure. Clinical features include diminished skin turgor, dry mucous membranes, tachycardia, and orthostatic hypotension. Diagnosis is clinical. [msdmanuals.com]

The evidence in support of this is as follows: Distal anhidrosis of the legs is commonly found on thermoregulatory sweat testing and quantitative sudomotor axon reflex testing (up to 50% of POTS patients). 4, 10 Ganglionic acetylcholine receptor antibody [doi.org]

Postural orthostatic tachycardia syndrome Other names Postural tachycardia syndrome (POTS) Specialty Cardiology, neurology Symptoms With standing: lightheadedness, trouble thinking, blurry vision, weakness[1] Usual onset Around age 20[1] Duration 6 months [en.wikipedia.org]

Pappas, Autonomic related vertigo, The Laryngoscope, 113, 10, (1658-1671), (2010). Gonzalo Barón-Esquivias, Aurelio Cayuela, Alonso Pedrote, Soledad Cabezón, Juan E. [dx.doi.org]

Acute/chronic otitis media Acoustic neuroma Barotrauma Cholesteatoma Dysfunction of eustachian tube Foreign body Hearing impairment Hematoma of external ear Labyrinthitis Mastoiditis Meniere disease Otitis externa Tinnitus Tympanic membrane perforation Vertigo [nccpa.net]

People often refer to dizziness as vertigo, unsteadiness, or lightheadedness. [medicinenet.com]

Low blood pressure of any cause may promote the following: [4] lightheadedness, sometimes called pre-syncope (pre-fainting) dizziness (but not vertigo, which is also called dizziness) [5] exercise intolerance extreme fatigue syncope (fainting) Excessive [dysautonomiaconnection.org]

Low blood pressure of any kind may promote the following: [3] lightheadedness, sometimes called pre-syncope (pre-fainting) dizziness (but not vertigo, which is also called dizziness) [4] exercise intolerance extreme fatigue syncope (fainting) Excessive [psychology.wikia.com]

Patients with vasovagal syncope are able to maintain their BP for several minutes following HUT and then experience a rapid drop in BP as stroke volume and cardiac output decrease. [doi.org]

POTS patients often have preserved vagal function (as reflected by their sinus arrhythmia ratio in response to deep breathing) and a vigorous pressor response to the Valsalva maneuver, with an exaggerated BP recovery and overshoot both before and after [web.archive.org]

These patients often have preserved vagal function as reflected by their sinus arrhythmia ratio in response to deep breathing. [hopealways.wordpress.com]