Hi, dear I have gone through your question. I can understand your concern. You may have thyroid swelling or some other midline neck swelling. You should go for examination. If your lump moves with swallowing then it must be thyroid. You should go for ultrasound neck, thyroid hormone study and fine needle aspiration cytology of thyroid. It will give you exact diagnosis. Then you should take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health.