Hello ! I understand how difficult it may be to gather your thoughts when you are going through something like this. When your thyroid values are abnormal and so is the Vitamin D3 you definitely find these things contributing to the problem. Pregnancy itself is a very challenging phase both physically and emotionally . Plus you got to nurse the baby and it's an ongoing process. There are a lot of hormonal changes which occurs during pregnancy which also affect the hormones in the brain and this reduction may lead to symptoms such as low mood decreased energy levels and lack of attention and concentration ( memory problems) and range of other symptoms .