Disease Adaptation

I think we often forget that illness is a living thing.
We are seeing this mostly in the area of bacterial infections. We find a way to eradicate something, and then it adapts, changes, comes up with a new approach to get past our old systems.
Just like rodents and infestations - sure you can get rid of them once, twice, maybe even three times the same way, but at some point they might return and you will have to come up with a new way to keep them out.

Chronic illnesses are lifetime illnesses, but that doesn't mean that they stay the same. Just like any other 'infection', they change over time, they can affect different areas and cause varying symptoms. If we can deal with one symptom, another one might just pop up.
This is a relationship that we must learn to compromise with.
Have you ever been able to completely rid yourself of one aspect of a disease, only for another to show up later?

I am not sure how much of this is just speculation or if there is any truth to it - but this is often how I feel about my own body:
I feel like there is an army of inflammation and autoimmunity that is ALWAYS attacking. If I fight them off in one area, they simply move to a different part of the body. If my system is inherently damaged and my own cells are, in fact, turning against me, then unless my entire system is reset, there will always be cells that attack their own kind. (Those traitorous bastards).
Because I am constantly trying to fight off all of the 'active duty' inflammatory cells in my gut, sometimes they send off parts of their army to other areas - so that I have to devote attention to another area. If I am fighting the inflammation in my SI joints for instance, then more inflammatory cells can invade my intestines quietly while my SI joints are being actively attacked. Or if I am focused on the inflammation in my intestines, they have an opportunity to make a surprise attack in my eyes. Then, once my attention moves to my eyes, they decide to move on to my pancreas. Then, once my pancreas is free of inflammation, time for them to move to my blood. Or to my kidneys. Or to my bladder. Or to my skin. Or maybe my throat. Or perhaps my heart. Or why not invade my HEAD so that all that I can possibly experience is pain.

Inflammation adapts - just like any chronic infestation. It almost feels like if I fight too hard, then I wind up with some additional inflammatory illness. They go to a new spot and multiply so that now I am consistently dealing with inflammation in several places.
BUT - if I can just get to a point that is manageable but not quite remission, then there is no spreading, no multiplying, no new trenches being set up in other organs - it remains in a constant state of inflammation but is more predictable. Those inflammatory cells have just built themselves homes and are just existing - coexisting - inside whatever organ they have chosen to inhabit... and if I shake things up they will fight back. But if I just let them live wherever they are, maybe they will settle down on their own and stop attacking so much!

That is often how I feel.
Wars being waged in my system - with rogue inflammatory cells always trying to find new areas to conquer, while others are consistently bothersome but not savagely attacking me every minute.