Our body and our mind have the power to send warnings whenever something is wrong with us. Sometimes, we receive those warnings, and other times, we simply ignore them. Below are some of the symptoms that serve as alerts that we should act and visit a doctor or simply make a drastic change in our lifestyle.
If you ever notice that the color of your skin turns yellow, that can indicate problems with your liver. This happens when the levels of bilirubin in our body are high and it is not able to get rid of them so the skin and the whites of the eyes appear yellowish. 
Tiny white dots on the nails may be a sign of lack of zinc, calcium, or protein.
Many people don’t even pay attention to these dots because they are unaware they are a warning sign. At the same time, this condition may refer to physical trauma such as biting your nails or picking at them, or even a fungal infection. 
If your lips get cracked, it might be time you start drinking more water and other liquids to keep your body hydrated.
Nail clubbing refers to fingernails or toenails that are curved downward. This isn’t always a cause for alarm because it may be something that runs within the family, but at times, it can be caused because of several reasons, including lung or heart condition or certain cancers. Further, Crohn’s disease, celiac disease or other conditions that cause inflammation in your digestive system can lead to clubbed nails.
Mouth ulcers, or cold sores that appear around or inside the mouth, indicate a weakened immune system. These sores can also be caused because of hormonal changes, emotional stress, and a vitamin B12 or iron deficiency. 
White bumps on your eyelids may be a sign of diabetes or very dry skin.
The grey or white ring around your cornea, which is known as arcus senilis, or fat deposits, is typical in the elderly due to their age. However, it may also be a sign of elevated cholesterol levels. 
The reddish appearance of the tongue may be a sign of folic acid and vitamin B-12 deficiency.
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