Over the years, comparisons have been made on the forums between POIS and Chronic Fatigues Syndrome (CFS). So this article is interesting:
http://www.newscientist.com/article/mg22730284.000-antibody-wipeout-relieves-symptoms-of-chronic-fatigue-syndrome.html?utm_source=NSNS&utm_medium=SOC&utm_campaign=twitter&cmpid=SOC%7CNSNS%7C2015-GLOBAL-twitter#.VZUMsOsmUqZ
I have Both.
After 20 Years of CFS, I have developed POIS in the last two. (yes, Struck by lightning twice)
I believe overwhelmed antibodies may be involved in both as well.
The CFS symptoms have worsened in the last 2.5 years, and now this. Perhaps no coincidence.
They are very similar in symptom except POIS hits immediately, whereas CFS usually takes days to hit bottom after exertion.
And in my case, of course, one aggravates the other.
It started happening slowly: breathing problems after 'O'.
I though it was a Heart issue and saw cardiologist for Stress test/Echo, etc.
It wasn't.
It got progessively worse until full 1 week of symtoms.
Symptoms that are very similar but start abruptly.
I'm used to the devastation, but the breathing problem/shortness and unnerving and may not pass for 24hrs, making sleep impossible.
Laying down, in fact, makes it worse.
Only discovered what it was it out after googling symptons and found these websites and Wiki description
I'm feeling pretty Devastated now.
Thanks for article above on Cancer drug.. It may very well help both.
There must be an iceberg of cases below these surface reports.