My 2 front teeth feel like they have moved but dentist says they are fine?

Front teeth. there are a number of things that can effect the way your teeth look and feel. Take a god look at your teeth and compare with photos to get a good idea of any changes. Then discuss this with your dentist or seek a second opinion. The more specific you can be the better you can be diagnosed and treated.
Movement. By feel do you mean your bite feels off for a short time or have you noticed a physical movement of the teeth? If the bite feels different then you might be grinding or clenching at night due to stress. Are your jaw joints tender? Please see your dentist for a complete exam including your TMJ and let us know how it turns out.