I need to get these thoughts out of my HEAD!!!!?

Dude! Calm down. Stop being paranoid coz it won't do you any good. Lump in the throat (the front part, immediately below your Adam's Apple) is one of the most common symptoms of thyroid problems or goiter. Thyroid problem can also cause mood swing disorder. your metabolism can also go up or down because our thyroid is in charge with our metabolism. One example is, if you have hyperthyroidism, you can loose weight, if hypothyroidism, gain weight. Problem with this gland can also affect sleeping. Bad sleep at night = bad morning. Please don't jump into conclusions merely because you found your symptoms under a dreadful disease on the internet. One way to be sure, if you're really feeling something weird in your body, is to consult your GP so that he/she can do the proper evaluation on you and eventually refer you to an expert.