What bit me?

       I had a big problem. On July, 15th, I went to see the Jazz Festival at Woodbine park. The weather was extremely hot and too sunshine, so now my skin tannd a lot. In the evening, the sunshine was getting disappeard, and the music came to me excitingly. One of my friends tried to start teach me 'Salsa' dancing, and I learned it hard. Finally, I got 'Salsa' dancing. After that I and my friends really enjoyed dancing!! It was a beautiful night. After finish festival, we went to Woodbine beach cause it's very near from the park. When my feet touched sand, I really like that soft feeling. We enjoyed the sea breeze and night view. My friends who are a couple, they went to in the sea. I think they were crazy couple! Anyway, they enjoyed their life, so it was cool! Late night, we stood up to go home. Suddenly, I felt something. It was so itchy, so I might scratched unconscious. Next day, it was still itchy, so I think that I kept scratch unconscious. My skin was getting swollen,and change color. It was serious. On sunday, I bought a cream medicine, and put it on my skin many time, but it didn't work. I got stressed out, and I felt tired. I thought that if I take a reat enough, I'd be fine. However, I was still tired. On July, 19th, finally, I went to a hospital like a Chinese medicine clinic after calss. I got nine acupuncture. I was so nervous, and I broke out in a cold sweat. However, the doctor was laughing I don't know why. He think that am I funny? Anyway, after that I got a yellowish swelling, and then got acupuncture again, and then the doctor took out my blood. :( He said that inside my skin there is something poisonous substance. The blood was dark. And the doctor think it was a BLACK FLY. I never heard that inset name before. Do you know that insect?