What kind of adrenal issue

I have a suppressed TSH and take T4 which helped my symptoms improve. However, I still wake up at 3-4 am everyday and feel bad during the day, feel well at night.

but, I noticed recently whenever the adrenals do their normal job (like secretion of cortisol early morning) I do feel bad. What I noticed is when I drank water with high level of heavy metals from the tap while traveling, I got bad reactions and couldn't sleep because of my adrenals working to eliminate these heavy metals from my body.

Any Idea what is going with my adrenals?