Question about cortisol and adrenal glands.?

If someone had lots of anxiety for a few months. Stemming from medical, relationship and academic issues. This is me obviously. At first would this have made your cortisol function through the roof then after the stress was gone, could your adrenals be so exhausted you are tired all the time. I couldn't sleep very well for weeks. Probably averaged 5 hrs a night with anxiety meds, melatonin. Docs could find absolutely nothing wrong with me. Tons of bloodwork. I was going insane almost haha. I am really anxiety free now after doing a lot of positive things for myself and sleeping very well, yet wake up every day tired. Would my cortisol level be too low currently and should I attempt to boost it narturally? Or is it something I am just imagining. Most doctors think this is a spoof explanation.