You have described some of the typical symptoms of low thyroid. Others are: depression, water retention, dry skin and hair, constipation....but by far the worst is the FATIGUE!!! I couldn't figure out what was wrong with me after my daughter was born. Finally, after 2 years and I thought I couldn't put one foot in front of the other, I went to the doctor and she ran they thyroid profile. It was pretty severe by that time. Wow, what a difference the synthroid makes.
Occasionally I'll forget it for a few days or not refill my Rx on time and all the symptoms start coming back again.
I would encourage you to get the tests done...it can change your life!!