Why do every one think I'm fighting my dog?

Could be that people are just ignorant, there is a stereotype about the breed. However, you didn't explain much. Why are people asking you that? Does she look beat up? What are you doing for exercise? I can't tell you for sure without more info. And to the person who says pit bulls were bred to fight is very mistaken, they were bred to be babysitters and body guards to royal children.

There has to be a reason. We'd need more information to know what sort of exercise the dog is getting and what exactly has been said to you. I'm sure you also realize that a lot of people have an automatic negative response to a Pit Bull. Do your best to educate yourself and those who are willing to listen to you about your dog. Don't worry about what other people think too much because they don't "think" very often.

Edit: I've read some of your other questions and I'm starting to think that you're training your dog for attacking humans. How to make a bite suit? How to make a bite sleeve? I almost drowned my dog? Questions like this show a lack of maturity and now it is obvious why people think you are training your dog to fight. This is one of the worst things you can do with a Pit Bull. This is incredibly irresponsible behavior and there is a big difference between keeping your dog fit and training it to attack humans. It is inexcusable. I will never answer your questions about Pit Bulls again.

Pits were bred to fight. Many people own them because they want people to think they're tough because they have a tough dog. Mostly what people think is that the owners of pits are idiots who are afraid to be in the world without a tough dog to make them look tough. Sissies in other words. Ignorant people like yourself who can't even spell are often the people who own these dogs because they think other people will respect them when in fact all they think is that you're a fool and a drag on society.

Get a dog that can help people, one that can be taken to hospitals and nursing homes to help people get well and feel better. But that wouldn't inflate your flat ego would it? Nah - better to have a bad *** dog and scare all those old helpless sick people. Bwah ah ah

Well... You asked a few days ago how to make a bite sleeve... Your mutt isn't equipped for bite work.

I would assume most people think the worst since you haven't a clue what in the hell you're doing.

learn to spell maybe they will think u r smarter than the dumb asses who fight dogs.