Is it possible to have a thyroid problem with normal thyroid function?. My gynocologist, among several other doctors in the past has suggested strongly that I find out why my thyroid is so enlarged. He did the thyroid function blood tests which came out normal, but he thinks it should be further investigated. I had a scan done years ago, which showed no nodules, but the question still comes up whenever my gynocologist sees me. My general practitioner says I just have a big thyroid and that is normal for some people. Are there other conditions of the thyroid that might contribute to me having it be enlarged?