Pheochromocytoma question?

Anyone else suffer from it or know someone who has it?

Are these symptoms common with Pheo?

Pallor, Loss of Weight, Constant Anxiety, Sinus Tachycardia, Colour change to nail beds, thinning of skin, dark circles under eyes, chest/arm pain, indigestion/burping, dark patches on skin, small lumps under skin, occasional elevation in blood pressure, cold sweaty hands and feet, trembling, loss of balance, visual disturbances and dilation of pupils?

What causes Pheo?

Thanks for your answers, I have had a number of blood tests but not sure if the Pheo would show up. Doc... Can you tell me if it would show up in the following tests (i.e. abnormal levels):-
Full Blood Count
Thyroid Function (TSH)
T4 and TFT Free
Serum Calcuim
Serum Potassium
Serum Sodium
Liver Function
Kidney Function
Urine Sample (basic test)
Creatinine
Urea and Electrolytes
EGFR
Random Glucose
Albumin
Serum Bilirubin
Folate
Blood Cultures

Chest X Ray
ECG

These are all tests I have done recently, FBC has been done three times, I've had 2 ECG's and my Thyroid tests have been done today for a 4th time as all the previous levels were normal.

There is a small gland above the kidneys which is known as the suprarenal or adrenal gland. It is a hormone producing factory which synthesizes very important hormones for our body. Its inner portion is known as 'medulla' . the inner portion synthesizes epinephrine/adrenaline, which is a hormone required for 3f reaction (fright, fight and flight) or in other words whenever one gets in danger this hormones comes to the rescue.
Think of this situation as if u r walking down an empty street at night and suddenly 3 wild dogs start chasing u. U d run like hell, sweat a lot and all the blood in ur body d get diverted to skeletal muscle, heart and brain, which d inevitably push the blood pressure to higher level. These r the basic symptoms of pheochromocytoma.

Pheochromocytoma occurs when the cells of adrenal medulla are converted into a tumor/neoplasm and start secreting epinephrine even when it is not required by the body, cause is usually unknown/idiopathic.

Surest way of knowing it is that if u get tested for it. Standard blood tests d give a hint but ct scan of abdomen is much more sensitive in picking it up.

you can look for your answers on medicine net.com. Any time i have a medical question that is the site i go to. it has helped me alot. Hope it helps for you.