Oh yes, candida will thrive on starches (especially fried starches-chips & crackers) and sugars even in the presence of antifungals. Then get killed by them.
Adrenal fatigue is best diagnosed by symptoms imo. What shows up as “normal” on labs might not be your normal. More frequent urination, salt tasting real good, getting lightheaded even a touch upon standing, things gettin to you a little more than normal, not being able to fall asleep or wake up easily are the initial indications of a hypo adrenal condition. Is this a problem for you? Jackin up the the thyroid hormones leans on the adrenals and can really stress them, this is often one of the first problems to occur when upping thyroid if one has weak adrenals. Too much armour will generally cause palpitations, restless type anxiety, and an upset stomach. Generally a feeling of being up regulated. Similar to die off, though die off will usually have other symptoms, as you know, typically including headache, brain fog, stuffiness, malaise and/or muscle aches.
Die off will stress the adrenals to a noticeable amount if your having problems there too.
Stop eatin the crap for a while and see what happens. Moly will help with the die off. B5 can hugely help both die off and adrenal fatigue (with vit c) and is one the b vitamins that is safe to take by itself.