Many residents of southern and central Florida do not realize they may have an invasive species right in their own backyard. The cane toad is a native of Central and South America and was introduced to Florida as a means to control white grubs in cane fields.
1 Breathing difficulties: Shortness of breath, wheezing or noisy breathing (called stridor) may all be signs of lung cancer.  Loss of appetite: Many cancers cause changes in appetite, which may lead to unintended weight loss.
Wheezing is a high-pitched, coarse whistling sound that can occur when a person is breathing. Some wheezes are only heard with a doctor's stethoscope, but it is not uncommon for a wheeze to be heard with the naked ear.he causes of wheezing widely vary. They range from chronic, usually manageable conditions such as asthma to very serious conditions that include heart failure. The most common causes of wheezing include: 1  Asthma (a chronic respiratory condition that causes spasms in the bronchial tubes).