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.
What Causes Wheezing. Wheezing is whistling sound thatâs produced when you breathe and usually indicates respiratory problems. Medical conditions like asthma, cardiac asthma, bronchiolitis, bronchiectasis, pneumonia, acute bronchitis, chronic obstructive pulmonary disease, and gastroesophageal reflux disease can cause it. So can a foreign object stuck in your airways and reactions to medications or insect bites.