This is a serious allergic reaction that can occur in some individuals after a bite from a striped Horse Fly. Symptoms can include difficulty breathing, nausea, rapid heart rate, and dizziness. However, such reactions are uncommon. It's important to note that the severity of the symptoms can vary depending on the individual's sensitivity and the number of bites or stings received. If you are concerned about a specific bite or sting or if symptoms persist or worsen, it is recommended to consult a healthcare professional for proper evaluation and treatment.