Manny Pacquaio is scheduled to visit a brain doctor in Las Vegas for testing, but is brushing off suggestions by other doctors that he’s displaying signs of Parkinsons, reports ESPN. “I am doing good. God is good,” Pacquiao told the Manila Bulletin. Dr. Rustico Jimenez, basing his statements solely on observations and not any physical examination says he’s seen Pacquiao’s hand trembling and said that is a sign of Parkinsons. Some, including the boxer’s own family, have suggested that Pacquaio retire following his knockout by Juan Manuel Marquez. Again Pacquaio dismissed those suggestions. “I will be the one to say that I will retire from boxing because I am the one who knows and feels what my body is telling me.”