Hi, I have had under active thyroid for 37 yrs and goilter, this year I have had swelling on my next come up. I have found out after having a ultra scan I have 3 5cm nodules, coupe of small nodules and couple of cysts. I'm now referred to a specialist, I am really worrid incase it is cancer I know I probably have to have biopsy and operation, I have had night mares and it has triggerd my ptsd, what shall I expect on my first appointment with the specialist