It feels if I am swallowing against something in my throat, it also feels if my ear are swollen. I have an underactive thyroid?

May not be thyroid. If your ears feel swollen this isn't a thyroid symptom. Perhaps you have an infection and swollen lymph nodes or something else? Please see your doctor for an appropriate medical evaluation.
Swallowing issue. See an ENT doc... A thyroid issues can cause the gland to enlarge enough to impair swallowing or breathing.

Related Questions

Hard lump in throat appears at random times feels as it my thyroid is swollen and is pushing against my neck. I've underactive thyroid & on thyroxine?

Thyroid. Hello. Your symptoms could be related to your thyroid gland. There is also a thyroid cartilage better known as the "adam's apple". See your doctor. He/she may order an ultrasound of the neck that will provide an image of the area. Your thyroid numbers could be completely normal and the gland may be abnormally enlarged or contain nodules. Good luck. Read more...

I think my glands are swollen on the right side of my neck. It seems to flair up often. Can it be related to my underactive thyroid?

Swollen Gland. Unless your underactive thyroid is due to an autoimmune it is not typical for thyroid hypofunction to have accompanying enlarged lymph nodes. Sinse the lymph nodes never resolve, you may need treatment of the acute inflammation and possibly a neck ct with fine needle aspiration biopsy. Read more...
Unlikely . By "glands", i assume you mean lymph nodes. Hypothyroidism does not cause lymph node enlargement, but toothaches, colds, allergies - any head, neck or upper chest infection or inflammation can. Read more...