Hello and hope you are doing well.
If the swelling moves while swallowing it is most probably from the thyroid gland
. Enlargement of the thyroid gland
is called goitre. It could be due to infections, inflammations, deficiencies of iodine/thyroxine or nodules. Please consult your primary care physician who will do an initial assessment and may ask for a thyroid hormone profile, ultrasonography of the thyroid, and sometimes a CT scan to detect the cause for goitre.