Numerous conditions can cause pain, numbness and tingling in the left arm. According to the National Institute of Arthritis and Musculoskeletal and Skin...
Causes of Swollen tongue. There are many possible causes of a swollen tongue. A swollen tongue can result from such abnormal processes as infection, inflammation, allergy, genetic disorders, trauma, malignancy and metabolic diseases. Some causes of a swollen tongue are serious, even life-threatening, such as a anaphylactic reaction.
1 Pimples on tongue can be a result of some kind of injury to the tongue caused by scraping or biting.  Oral thrush or oral candidiasis â a yeast infection â can also cause pimples on tongue. This is a fungal infection and you may see pimples on other parts of the body as well like the armpits or groin.