Dry white patches on your tongue. If you have dry white patches which appear in odd shapes on your tongue, this could be a sign of celiac disease. Celiac disease is an autoimmune disorder that causes your body to attack itself when you ingest gluten. You may also have celiac disease if you have diarrhea, fatigue, vomiting, or weight loss.
Frequent urination. Frequent urination is a common early symptom of type 2 diabetes. When your kidneys have a hard time managing blood sugar, they try excrete it in your urine. Frequent urination is also causes dehydration which is another early symptom of diabetes.
Chronic hiccups. Chronic hiccupping is when you can't stop hiccupping for 48 hours or longer. If this is the case, it could be a sign of lung or esophageal cancers or stroke. Your central nervous system controls hiccupping, and brain issues and some types of cancer affect that system.
Frequent chills. We often feel chilly during the winter, however if you often feel cold even during the summer, that may be a sign of an underactive thyroid gland. An underactive thyroid can limit your body's energy burning and heat-producing functions.
Lumps under your skin. Lumps that appear firm under your skin may be the first symptom of rheumatoid arthritis. These lumps are composed of tissue and can grow quite large, but usually don’t hurt. They usually appear near your joints, especially in your hands and near your elbows.
A craving for ice. Craving ice may indicate you are anemic, which is due to an iron deficiency. This may be associated with the tongue pain or swelling that can occur when you are anemic.