let me explain to you what is happening to your body right now.

your adipose tissue has reached its limit of capacity to take on fatty acids and they are now overflowing into organs such as liver, pancreas etc. causing those organs to fail.

those organs failing is what is causing you to be sick.

if you don't lose weight you will continue destroying your liver and pancreas causing a cascade of effects such as whack insulin ( pancreas ) and cholesterol ( liver ) levels that will ultimately cause your arteries to get clogged resulting in amputated limbs, stroke, heart attack and death.

morbid obesity is called morbid for a reason - because it leads directly to death.

you're worrying about wrong things.  your goal should be to lose weight at any cost, not worry about "nourishment" or any other hippie bullshit.