"Are my weak adrenals causing the sensitivity or I could just be naturally sensitive?"
Or both. We hear that frequently from the members of detox groups who are also chemically sensitive.
They often do better with adrenal *cortex* glandular. Thorne's has a decent rep among those with MCS.
Eventually you might want to get a decent adrenal and sex hormone panel. As you see they are quite related. (dhea is not abbreviated)
In my experience morning wood is related to DHEA levels. That is one way--along with followup blood tests-- that I gauge my intake of DHEA. For me that is only a tiny dose of 6mg two or three times per week.
I think it is wise to also include pregnenolone in the blood test although a doctor might not. It is the grandmother of the cortex hormones. If preg is low-norm and you feel a little better with 10mg x2 or so you have a puzzle piece. It is much less expensive than most other adrenal support options.
If you decide to also test saliva cortisol, you'll likely want to wait until you are feeling fatigue, not amped up with lots of stress and stimulants.
Have you tried to slow down Liver Phase I and support Phase II? This takes the edge off of the MCS for some people but they often struggle to tolerate the things that theoretically should be useful. Finding a better diet with fewer chemical additives, phenols and salicylates might be somewhat helpful.
"Naturally sensitive" or mercury(Hg) + arsenic fouling up your liver as they tend to do.
The adrenal cortex hormones are one of the most vulnerable systems to mercury. Boyd Haley, former chair of the chem dept at the U of Ky says the hormone receptor for several stress and sex-related pituitary hormone, ACTH,FSH, etc holds onto mercury about as well as anything can. Haley warns that levels of mercury in the blood will be similar to levels of ACTH when a person has 6-12 or so Amalgam
fillings--contain 50% Hg.
Add to that the organic/ethyl mercury in the flu vaccine that the drug pushers force on people to help Big Pharma profit.
That form of Hg easily crosses the blood brain barrier. Some of that naturally gets converted to inorganic Hg while in the brain. Inorganic Hg doesn't pass the bbb at a medically useful rate and so essentially gets stuck there to mess with control of hormones, memory, personality, mood, etc. I've been there : ( Thankfully improving with detox--Cutler.
Good luck to you. My previously good health went South in my late 20's. It continued to decline until my early 40's when a close friend finally convinced me to stop treating my clueless mainstream doctors like benevolent medical gods. Mine is a long story. Some of it is here.
We did not have resources such as this group when I was your age. You have an opportunity to learn and heal rather than have your life messed up. Good luck to you.