Hello, I was diagnosed with hypothyroidism approximately 2 years ago. For about a year and a half I have taken a low dose of synthroid and my levels have been normal. For insurance reasons, I went a month without my medication. I then returned to my medication (a different brand than synthroid). During my time off of the medication, I experienced swelling in my throat and neck. This did not reduce when I began medication again, although my horomone levels are normal. I had a sonogram of my neck and after further tests, was diagnosed with Hashimoto s disease. I received this diagnosis a few months ago. My symptoms include neck/throat swelling, shortness of breath, light headedness, mild depression, anxiety, occasional swelling in my knees, hands, and feet, and as of a few days ago, chest/lung pain. Is this normal? What more can I do to feel better? I also have a family history of hypogammaglobilunenimia. Should I be concerned about that? The new chest pains have me worried.