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.
Any conditions or diseases that can constrict the airways can lead to wheezing. Wheezing can be accompanied by other symptoms such as coughing and shortness of breath. Wheezing may also occur in anaphylaxis, a severe and potentially life-threatening allergic reaction.