My belief, to separate the physical body (they can never be separated), is to cover the basics.

Water alone could make a huge difference. It is amazing the effects it has on the body. "The Body's Many Cries For Water" or "You're Not Sick, You're Thirsty" give you the basics of how essential to health water is.

The Western approach seems to try to separate everything.

A couple things on dehydration.

The body makes choices about what is more important to run. Just like stress takes priority over recovery. Certain areas of the body will be more important to send water to than others and the body will scavenge water from one place to take to another.

The protective lining in your stomach is largely made of water. Decrease the lining and you can get ulcers etc.

The alkaline solution made to neutralize stomach acid and your food after digestion is largely made of water. If there isn't enough there the stomach holds onto it for if it let it pass through it would literally burn through.
Acid reflux etc

Arthritis.
The lube in the joints is largely made of water and the cartilage has a water content, as well water is used to flush acid build up out of the joint. Dehydration can likely lead to 'arthritis'.
I have experienced peoples 'arthritis' disappear from starting to get the right amount of water.

Brain function and water are huge. (MS, altz etc

The colon, if you are dehydrated, will squeeze any water it can out of your shit to try to keep hydrated. Not only is this not clean water but it also can lead to many colon related issues.

I am not saying water is a cure all. I am suggesting that untill you cover the basics its pretty crazy to start treating with drugs or other things.

Water is just one of the basics.

Dehydration is stress too and that effects all.

Stomach flora health is huge also. Chlorinated will also help to kill off bacteria as well as drugs and antibiotics etc and I am a believer in probiotics also.

Teeth and dental is huge in my opinion. I also believe that western dentistry causes a lot of problems.

Foods intolerances are huge also (let me guess - your lower stomach pouches out?). Digestive health effects the brain pretty much directly (seratonin levels in the gut will be the same levels in your brain. Also any digestive issues limit your ability to take in nutrients, building blocks and energy from foods etc

Root canals and cavities are scary how most dentists do IMO. Some European researchers believe that modern dental practices are a huge cause of diseases these days.

In terms of mornings being sick related to life. Was there anything three years ago, and or to present, that makes you not want to get out of bed or that makes you 'sick' thinking about the day.

Many many things... always makes sense to me to start with the basics.

Water -.5oz per lbs of body weight daily (pinch unprocessed sea salt per liter)
protein every meal
don't skip breaky
no gluten

there is way more of course but if the US alone did this... well they might not vote in people who like to kill so much