Hi Deb,
Welcome. I'm relatively new to the site too,although my cancer started over a year ago.I had a right neck dissection in Nov. and my neck is still hard and numb - not quite as bad though as earlier. I didn't have much shoulder pain but my surgery didn't include the thyroid so I'm not much help there. I'm sure you'll get a response soon from someone with a similar experience. One thing I have learned this year though is don't suffer in pain. Let your Dr. know that the meds aren't working. Maybe they can give you something else. Hang in there!