common digestive system symptoms of a bee pollen allergy include nausea, vomiting, diarrhea, cramping, stomach pain and bloating. Some people may have respiratory symptoms which include sinus congestion, runny nose, sinus headaches, trouble breathing, wheezing, coughing, and chest tightness. Cardiovascular symptoms can include lightheadedness, dizziness, an increased heart rate and a drop in blood pressure. skin can become in flamed and produce hives or eczema.