- adrenal fatigue can be easy to miss and hard to pinpoint...biggest signs are fatigue, brain fog, reactive hypoglycemia, dizziness upon standing, intolerance to bright light, insomnia.
Things leading to adrenal fatigue - high sugar/carb diet, nutrient poor diet, poor sleep, and any stress whatsoever - physical, emotional, lifestyle, unknown food sensitivities...people can have an excellent diet and still have poor adrenals due to lifestyle stress, and some people manage to have relatively poor diets and still have functional adrenals. A lot of times people have an event that triggers symptoms of fatigue - divorce, death of a loved one, an illness that they just never fully recover from.
A simple home test to gauge your adrenal health is to buy a medical penlight, then sit in a darkened room for a minute or so, then shine the light at one eye at an angle and watch your pupil. It should construct and hold, but if it pulses or releases the construction then that's a sign of fatigue. But fair warning before anyone tries this and freaks themselves out - in a room of forty people who are extraordinarily health conscious, ONE person actually held a pupillary construction. This is the first sign of any degree of fatigue, so you can "fail" the test and still have pretty good adrenals. A better indicator is how your blood pressure changes when you stand, but that's pretty difficult to check.
Anyhow, I don't think not having first tri fatigue and nausea is a bad sign, and the only reason we tend to view it as a good sign is because most people don't have high functioning adrenals, and therefore have those first tri issues. But common doesn't mean normal or ideal.