Hi less_fogged,
Thanks for your appreciation about my contribution here, I try to keep a scientific and practical approach vs POIS.
To answer your question about when my POIS has begun, you have to know that my subtype of POIS is not the most current one, as I do not have any cognitive symptoms - I never had any brain fog, any memory problems, any speech impairment, any problem solving capacity impairment, and the like. When I do not use my prevention method ( described
in this post ) , my symptoms are hypotension, extreme fatigue, and a lot of emotional symptoms, like anxiety, emotional intensity, mood swings, irritability, low self-esteem, lack of motivation, dysphoria, and the like. So, even if my POIS as started at puberty, at the very start, I have been able to study, and been able to found and run my own business. It has sometimes been difficult because of the fatigue, but I had to time my releases, and things got easier to manage as my prevention and control method got better through the years.
When I have first discovered this forum nearly a year ago, I was surprised, first, to see that I wasn't the only one with this problem, and have been also surprised about how each and every poiser had a very specific and "custom" set of symptoms, but that overall, the "choice" of symptoms was not infinite. The fact that I didn't have any cognitive symptoms have led me to understand that POIS symptoms could be regrouped in four clusters of symptoms, and that some POIS sufferers could suffer symptoms from one or two clusters, or three, or from all four of them ( my grouping of symptoms in clusters can be found
here , along with some other observations about POIS subtypes and POIS cycles )
Needless to say, I am very happy that my POIS had spared my cognitive faculties. In fact, it is because of a very good memory and ease at learning that I could have gone through university despite POIS. I was sometime totally out of whack for a few weeks, but could manage to emerge from emotional chaos a week or so before the exams, and succeed with excellent grades. However, because I was not functional on a regular basis, and was aware of it, I have chosen not to attend a more demanding program like medicine - those 24 hours of non-stop duty were absolute impossibilities for me. And, at the beginning of my career as a pharmacist, when i had to work for others, it happened that a boss or two have noticed that I was doing great some days, and wasn't really myself on other days ( I have never disclosed the reason or try to explain it ). I had to cope with that, and one or two times, I had to change job because the boss had become not so enthusiastic about my unstable performance. But after a few years, and with more experience, I came to be able to "hide" my POIS with more ease, in particular by using green tea and magnesium. Finally, when I have started my own pharmacy 18 years ago, it became a lot more easier, because I was accountable only to myself.