Ive been coughing up gelatin-like balls that vary in color and also feeling chest tightness and wheezing. Its making me really worried. What could be causing this, and how serious could it be?

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.