This info is from The American Cancer Society...
"Signs and Symptoms of Thyroid Cancer
Thyroid cancer can cause any of the following signs or symptoms:
A lump in the neck, sometimes growing quickly
Swelling in the neck
Pain in the front of the neck, sometimes going up to the ears
Hoarseness or other voice changes that do not go away
A constant cough that is not due to a cold
If you have any of these signs or symptoms, talk to your doctor right away. Many of these symptoms can also be caused by non-cancerous conditions or even other cancers of the neck area. Lumps in the thyroid are common and are usually benign. Still, if you have any of these symptoms, it’s important to see your doctor right away so the cause can be found and treated, if needed."
How large are the nodules? Did the ultrasound report provide any description, other than that some of them are solid? Is there calcification, hypervascularity, etc?
Did they not go ahead and do another biopsy or did the doctor simply "assume", based on the ultrasound that all of the nodules are still benign?
I don't know where you're located, but according to new ATA/AACE guidelines, biopsy is no longer performed on smaller nodules, unless other characteristics warrant. Those characteristics may have been absent from your nodules.
Nodules can change over time, depending on thyroid status and you didn't say if you've been diagnosed with any other thyroid condition, such as hypothyroidism, hyperthyroidism, Hashimoto's, Graves Disease, etc.
Although the majority of nodules are not cancer, I agree that a year is too long to wait for the next ultrasound, though, again, ATA/AACE guidelines say that annual is often enough for most. Unfortunately, many doctors are using the guidelines as specifications, instead of what they are - a guide that says each case should treated on its own merits.
You didn't say if you've been diagnosed with any other thyroid condition, such as hypothyroidism, hyperthyroidism, Hashimoto's, Graves Disease, etc. That's important, because nodules are very common when one has thyroid condition and being medication can help shrink nodules that may be causing pain.
In the course, of all this, you should have been tested for Free T4, Free T3 and TSH, at least, and preferably for thyroid antibodies, as well to determine if you have an autoimmune thyroid condition. If you'll post the results of any blood tests, it would be very helpful for us. Be sure to include corresponding reference ranges with any results posted...
I've been going through something very similar with a quite large nodule on my thyroid. At least, my doctor isn't guilty of the absolutely horrible bedside manner displayed by your doctor, so I don't leave his office every time determined to find a different doctor... though I'm strongly thinking of it, simply because, like you, I feel that my nodule deserves more attention than it's getting...