Hi, I have Cortisol of 5.7 (normal range 6.2-13). ACTH is normal. I have been suffering for nearly two years of diziness, extreme fatigue, low bp, imbalance while walking, tremours, difficulty while breathing, palpitations... Do these symptoms have any bearing on my cortisol level? I have gone through all other tests including MRI brain. MRI of pitutary showed a small lesion which the report said could be a microadenoma.