Well first off if the horse is acting strange or is not putting on weight then you should contact and equine vet immediately. Now a yearling gelding should be healthy and not behaving oddly at all. The horse would be drinking excessive amounts of water due to the large amounts of salt it is ingesting, the most likely cause for this is the summer heat, horses will drink more when it's hot outside.The large amounts of pee would be due to the increase intake of water. You say the horse is dewormed regularly, but you should have a fecal egg count done to ensure that the product you are using is effective. You also say the horse eats 'good', but what exactly is it eating and how much? The horse should be getting between 1% to 3% of it's bodyweight in food daily. The horse should not be 'ribby', have the vet check the horse thoroughly for parasites, dental issues and have a blood panel done to exclude illness.
stress. when you have very high amounts of stress it causes adrenaline which leads to fight or flight
They need a bath or have excessive urine leaking,or if its a nail polish smell they may have diabetes
Large amounts of rainfall can cause problems because of flooding of forests and cities. Acid rain falling cause global warming problems.
Eutrophication promotes excessive plant growth and decay and causes a severe reduction in water quality. Phosphorus is a necessary nutrient for plants to live, and is the limiting factor for plant growth in many freshwater ecosystems.
When the temperature of water rises, the solubility of gases goes down. This causes the fish to not be able to breath well.
excessive amounts of fat in the blood
Excessive diuresis withou high blood glucose levels
The disease that is associated with excessive amounts of thyroid hormones is hyperthyroidism. Hyperthyroidism is a thyroid condition that causes the thyroid to become overactive. An overactive thyroid produces too much thyroid stimulating hormones.
parathyroid hormone
excessive amounts of air,loose washer in faucet,small debris or gravel in piping system.
When the body burns off too much fat to make ATP it will turn to the muscles for energy which causes them to break down. It also causes bones to weaken and the heart to atrophy. It can be caused by Hyperthyroidism or a tumor in the hypothalamus.
Depends on where the discharge is coming from. From the rectum? Not sure how you can tell without lab tests. From the genitals, no, you should see your doctor.
Excessive wear, or lack of oil. Or both. Generally lack of oil is what causes the excessive wear.
Excessive revving of an engine causes overpressure in the crankcase. It causes unhealthy expansion in the pistons and the valves.
The foods you eat.
No
Excessive water intake and excessive caffeine will cause GI distress.