I've been noticing these weird gelatin-like balls whenever I cough, and they come in different colors. I'm also experiencing some chest tightness and wheezing. What could be causing this, and is it something serious I should be worried about?

Coughing up clear jelly balls may be caused by a buildup of mucus in the airways. This may occur due to allergies or infections such as common colds or flu, accompanied with dehydration. If symptoms continue for more than a few weeks, it is best to contact a doctor to find out the cause and get treatment. If the color of the mucus resembles yellow or greenish mucus, it may be indicative of a bacterial infection, which may require antibiotic therapy.