If i were to start testoste treatment would my body stop producing its own? what are the positive and negative consequences? what kind of dr.?

Maybe: 400 characters isn't enough to answer your questions in detail. If given testosterone, body will cease to produce its own. But if levels were low in 1st place, then it's a moot point. However it's possible to take other medications to stimulate t production, which is useful in someone who wants to father children, too. Many side effects to too much t so be sure to discuss w/your family doc.