What Causes Pins And Needles In Foot Along With Grey Coloured Finger Nails?

/i have had a massive allergy to man made fibres in my foot, consequently 3 years later I have a pins and needles type sensation in my other foot. my big toe on this foot is slightly greyish not pink as are my finger nails. /i am in grat pain often, Ithought that it might be cancer as man made fibres are made of the mass hexagonal molecules which comprise of the carbon and hydrogen molecules....this is the carbon breakdown possibly of many and much in nature. MY ALLERGY WAS TO AN IMPORTED SHEEPSKIN SUBSTITUTE BOOT. /I NEARLY DIED 3 YEARS AGO. /I SUFFERED AT THE TIME FROM CO OVERLOAD. /I CAN NOW GET ALLERGIES TO A SMALL ALCOHOLIC DRINK AND MY MATTRESS AND THE INSIDES..EVEN OF LEATHER SOFA. /I HAVE HAD BLOOD TESTS NO CANCER IS SUPPOSED TO BE PRESENT. /I AM TRYING TO OBTAIN A DOPPLER TEST WHICH IS SUPPOSED TO SHOW THE PULSE OF THE VASCULAR SYSTEM. /MY MOTHER HAD ONE 2 1/2 YEARS AGO AT THE AGE OF 73 SHE HAD OPEN HEART SURGERY VIRTUALLY INSTANTLY. ///THEY WILL NOT REFER ME TO A VASCULAR SPECIALIST TO HAVE THIS TEST DONE AS i AM IN A PSYCHIATRIC HOSPITAL FOR COUPLE OF WEEKS DUE TO THE STRESS AND POVERTY OF NOT HAVING A MATRESS. /I AM A LITTLE BIT POOR AT THE MOMENT AND HAVE TO ASK CHARITIES FOR HELP. HOW DO i OBTAIN A DOPPLER TEST TO SEE IF i NEED A PARTIAL AMPUTEE AND HOW MUCH MONEY DOES IT COST