Combined, the images capture the fleeting moments that make up the sum total of the world we live in.
'Sunset Safari'
On the way back to the Lodge at the end of a game drive we startled a giraffe as the sun set.
Mark Seabury / National Geographic Travel Photographer of the Year Contest
'Eye Spy'
This photograph captures a whale behaviour called “spy hopping”, where whales poke their head above the water to take a look around and see what ís happening above the surface. It ís like these majestic mammals of the sea understand we are watching them and are trying to connect with us in some way. In this shot, I wanted to capture this by showing the whale between two worlds, ours above the surface and its below, at the precise moment when it is about to make that connection.
Michele Palazzo / National Geographic Travel Photographer of the Year Contest
The entry fee is $15 (R200) per photo and there is no limit to the number of photos an entrant can submit. 
The NatGeo Travel Photographer of the Year Contest contest is open now and entries must be submitted by 30 June 2017.
In each category, National Geographic Travel will award first-, second- and third-place cash prizes of $2500 (more than R33 000), $750 (more than R10 000) and $500 (more than R6 600) respectively. 
As grand prize, the 2017 National Geographic Travel Photographer of the Year Contest offers a 10-day trip for two to the Galápagos Archipelago with National Geographic Expeditions, as well as the prestigious title of National Geographic Travel Photographer of the Year for 2017. 
0
The
National Institutes of Health
name the following symptoms as the first indicators that something has gone wrong:
Symptoms
Bleeding.
Bleeding can occur anywhere in the
digestive tract
, from the mouth to the anus,
The Merck Manuals
remind us. Blood in vomit reveals bleeding in the upper part of the digestive system, and blood in the stools from the lower part. Blood in the stools can be either bright red, or can turn the stools tarry and black. The higher up in the tract the bleeding occurs, the darker the stools. 
Bloating
. This is a condition in which the stomach appears swollen and feels full, because of a build-up of gas, fluid or ingested food in the small intestine. This could occur in isolation, or in conjunction with other intestinal disorders, according to the
Merck Manuals
. Read more on
bloating
and
Irritable Bowel Syndrome
.
Constipation
. The
National Institutes of Health
say three bowel movements or less in a week or hard, dry and small bowel movements mean you are
constipated
.
Diarrhoea
. This describes the frequent passing of watery stools. Many people experience this from time to time, and often it is not a symptom of a serious disease, especially if it clears within a day or two. But chronic diarrhoea could point to a more serious condition and definitely warrants medical attention sooner rather than later. Read more on
diarrhoea
.
Heartburn
. When acid reflux spills into the oesophagus, the burning sensation it causes is called
heartburn
. Symptoms can include a burning feeling in the throat, and possible chest pain. Most people get heartburn occasionally, especially after a heavy, spicy or fatty meal, but if it happens several times a week, you could have gastro-oesophageal reflux disorder (GORD).
Incontinence
. This term is used to describe leakage of faeces from the bowel due to poor bowel control, says the
Continence Foundation of Australia
. Some medications such as certain antibiotics could cause this on a temporary basis. Or it could be a symptom of bowel diseases, such as coeliac disease or certain nerve disorders.
Nausea and vomiting
.
Vomiting
describes the process when the contents of the stomach are forced up out of the oesophagus and out of the mouth, says the
National Institutes of Health
. Nausea is the feeling of abdominal discomfort that precedes the act of vomiting. It can be a symptom of a wide range of conditions from an allergy, to kidney stones to cancer or a tumour. If the nausea and vomiting persist, medical attention must be sought.
Abdominal pain
. This refers to a pain anywhere between your chest and your groin. It can be localised, general, cramp-like or come in waves according the
National Institutes of Health
. The intensity of the pain is not always proportionally related to the seriousness of the condition by which it is caused.
Abdominal pain
is a symptom of the majority of digestive diseases, and it is advisable to go to a doctor if the pain does not resolve itself in a day or two.
Swallowing problems
. This is also known as dysphagia. This refers to the feeling of difficulty in passing food or liquid from the mouth to the stomach, according to the
American Academy of Otolaryngology
. This is mostly not a symptom of serious disorders, but can cause a fair amount of discomfort. All cases should be examined by a medical doctor to exclude sinister causes.
Weight loss or gain
. Weight gain for no apparent reason could be the result of poor digestion, or because of a metabolic disorder, or because of taking certain medications, or because of the shortage or malabsorption of certain nutrients. Unexplained weight loss can be the result of something such as flu or an oral ulcer, but could also be a more serious warning sign of conditions such as
diabetes
 or cancer.
Read More: 
Diagnosing digestive disorders
 
Treating digestive disorders
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The information on Health24 is for educational purposes only, and is not intended as medical advice, diagnosis or treatment. If you are experiencing symptoms or need health advice, please consult a healthcare professional.
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