Pisceans come down most frequently with colds or flu. The lymph gland system is the main target in Pisceans. The muscles are the "heart" of the lymph gland system. So, exercise is vastly important to you. Water is your medium, so swimming is one of the best ways to "massage" your lymph gland system because all the muscles of the body are used in this form of exercise.
Your health is completely predicated upon your emotional structure, Pisces. You are one of the most highly emotional signs in the zodiac (Cancer is second and Scorpio is third), and your health or lack of it is directly tied to your feelings. Pisces health is directly connected to their feet--and this is a weak point in you. Chances are you've had more injuries to this part of your body than any other. Bruises, cuts, scrapes, and maybe even surgery.
Many Pisces have bunions. Pisces have all kinds of foot problems, including Athlete's foot. Take a walk when the sun is rising or setting. Stay in tune with yourself for you have the best instincts and inner knowing than any other zodiac sign. Your body will "talk" to you and tell you what food it wants on a daily basis--so trust it--and yourself. Meditation and yoga are perfect health producers for you--so try them out. Swimming is wonderful for you, if there's a pool nearby.