Dream about a Snake bite?

I had a dream about a Green snake that bit me while I was going for a jog. (I remember saying oh its not a dangerous snake, its not poisnosous its a big Garter snake, althought it looked scary) But the bite hurt and struck me fierce and QUICK. After that I went back to my house and the snake was in my room once again it bit me in the same spo t(In The Ankle) The dream ended with me killing the snake by Stepping on it with my shoe.