Thyroid issues and being pregnant

Are there any other ladies who are pregnant and also have a thyroid problem? I have had a thyroid problem since I was 16 and taken medicine for over 20 years. I am curious if any of you also feel extremely fatigued and sluggish even though you hit your second trimester. I got my energy back for a short time, now I can barely stay awake during the day, and get home from work most days and go right to sleep. I want to exercise so badly but there’s no way I can. I feel like I can barely lift my head during the last half of the day. I want to know if others are dealing with this also. Thanks. Happy pregnancy!