I Was Diagnosed With Hypothyroid (thyroid Wide Open Like A

I was diagnosed with hypothyroid (thyroid wide open like a stuck gas peddle)Thur bloodwork.Dec 1,2016. A Ultra Sound was performed Dec. 29,2016 and a solid growth was found pressing on thyroid. Now I was told a biopsy needs to be performed. My Mother has Head/Neck Cancer. I feel horrible, heart races, vision blurred, leg and feet cramps, feel anxious, short temper are just a few symptoms. Im worried I should seek medical help now. The small area which I live has few Doctors and their booked out. How long can I continue feeling like this?