I may be wrong, but I think that the recovery process can be hard as well.
Mostly if it is after a long illness, when recovery no longer seemed possible (although very much longed for).
It is relatively easy to understand the pain and difficulties of being ill, but people fail to understand the difficulties in recovery. Recovery is a hard and painful process, which is expected to be elating. It is initially, but can become very overwhelming.
There are many reasons for that. One is that recovery for a person who was severely disabled in someway means significant physical and emotional adjustment. As is exemplified by a blind man being able to see again-
http://www.sfu.ca/media-lab/archive/2007/387/Resources/Readings/sacks_toseeornottosee.html
Another is that recovery means for most people going back to your normal life, but there is a painful realization that this normal life is no longer there.
It's like being locked in a dungeon for many years and longing for the fresh air and beautiful world you lived in before (which many times you took for granted when being there), and then gradually finding the way to climb out of the dungeon, getting a glimpse of that world, and then slipping down again (because recovery is never a straight linear line, and involves ups and downs). Seeing that promised land (which you have almost lost hope to ever see again) only makes you long for it more and motivates you to use every bit of your limited energy to climb out of that dungeon and not fall into it again.
And then finally after that long and daunting climb, that took every bit of energy you had left, you are finally there, only to find out that the beautiful trees you have planted and your house have been taken away and all the things you have longed for while in your dungeon have to be rebuilt again.
This is a very vulnerable period in which you appear to be doing much better, while dealing with what is one of the hardest things possible-Coming to terms with the fact that the recovery you have longed for and was ready to do everything possible to get, may require significant adjustments and is only the first step in rebuilding your normal life again.
It takes time to realize that you have not lost your talents, and that after you rest from that long time in the dungeon and the exhaustion from the trip of getting out of there, after getting over some disappointments, you can slowly build your house and plant possibly even more wonderful trees again. (You can in fact build that beautiful dream house, you have been thinking about so many times while in your dungeon).
many physicians know this "paradox" - patients who respond well to treatment and have significant improvement in their condition, instead of being happy become depressed.
The length and severity of the illness, the difficulties in the treatment, the ability to return to the life one had before or find other (sometimes better) options, the support in doing so, the size of the gap between the kind of life you had before you were ill and the kind of life you could lead with your illness, all determine how hard the recovery is. And many of those factors are not under our control.
I think it is a very vulnerable period, in which patients need a lot of support in order to have a true recovery.
I also think many patients find it hard to admit (even to themselves) how hard (what is supposed to be wonderful) can be. It makes them feel that something is wrong with them.
This does not mean that true recovery is not possible. It just means that it is a much harder and longer process than it seems.
modern medicine and society don't give place for recovery. They want an "instant" healing process.
This is not possible even for a minor viral illness and definitely not for an illness of many years.
In fact, I sometimes ask myself if one of the reasons for the significant increase in various chronic diseases (including CFS), is not that we don't give people enough time to heal from an acute illness.