There is not much, IMO, to be done with the "mental illness", nor the unhappyness..
The inhaling of pollutants and condition of the body organs, can be fixed, maybe, but there is a connection between all of these conditions.
And I am no doctor...but, I can sympathize.
My fear of pollutants prevented inhaling, and my fear of an early death caused me to lose some weight and improve my diet.
High blood pressure ( 170/60 * 44)
But these numbers vary, medication, diet, and exercise do the trick.
Probably, if this were the 1600s, I'd be dead and buried, so our medical care has advanced a little, despite the presence of conservatives.