and right ear pain
all seem to be symptoms of headache as a disease ( as oppose to headache as a symptoms). It is likely be migraine
especially if there is any history of chronic headache in the family.
Low thyroid hormone level associates less with the symptoms you mentioned. Low thyroid hormone levels will usually lead to increased secretion of the Thyroid stimulating hormones. Low thyroid hormones could as well be due iodine deficiency
. Your doctor will check out and advise you more.
D & C will hardly cause dizziness, headache and ear pain except where it is complicated by anemia and infection. So blood test
will have to be done to check these.
So symptoms seem that of migraine. Your dr will clarify you further after checking out a number of issues as mentioned.
Hope this is helpful,
Wish you good health