Hello and thanks for your post

There are a variety of reasons for symptoms to develop and for most the cause will have a straightforward medical explanation and won't be anything as serious as cancer, so try if you can not to overly worry. One of the most common reasons for neck lumps is infection. Lumps can sometimes be felt for a long time after the infection has cleared and may never go back to their original size.

The next step now is to have the ultrasound scan, and I think until the results are available, no one will be able to tell you any more for now. If anything unusual is picked up a biopsy or further tests can be arranged.

I hope you know more about your situation soon and that everything turns out to be okay.

Kind regards,

Celene