In some cases, a person may have a mild to severe allergic reaction to brown-winged striped sweat bee's venom. Symptoms may include difficulty breathing, rapid heartbeat, severe swelling, and loss of consciousness. 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.