I'm not saying Provigil was the sole cause of my illness..it just really helped me burn my mitochondria out by making me think and feel like I had more energy than I did.
One of the known mechanisms of Provigil is to increase the production of ATP in the mitochondria. This is why it is able to give people energy for years at a time. If it were burning out the mitochondria, this would have happened a lot faster than in six years, especially with the level of activity that you mentioned.
By that point I had burned myself out, powered by Provigil.
I think that it's very important to differentiate here between causation and correlation. I took Provigil for eight and a half years, and it allowed my to maintain a level of activity that would have been impossible without it. Four the first four years, this level of activity gradually increased, peaking at the point where my OI problems disappeared essentially completely. I was well enough at this point that I got married, and this peak corresponded with the week of my wedding. Unfortunately, the activities of the wedding and the following few months were too much for me, and I never regained that level of functionality. But this was a simple matter of overdoing things, and had nothing to do with the Provigil.
I did have a feeling throughout the time that I was taking the Provigil that even at the time when my symptoms were improving, my underlying condition was slowly deteriorating. Again, I don't think that this was because of the Provigil, but rather in spite of it. In other words, I was not exceeding my boundaries due to the Provigil, but due to the fact that Provigil is only a symptomatic treatment, it did not prevent my underlying condition from getting worse.
I finally crashed from the Provigil after eight and a half years, but if anything, this seems to be a delayed effect of a major crash that I had from taking Valcyte at the full loading dose of 1800 mg/day two years previously. The Valcyte crash affected my ability to take many drugs, and I think that this eventually led to my inability to take Provigil.
Although I did crash from the Provigil, within six months I had recovered enough to be traveling cross country again, and over the following six months I regained almost all the functionality I had lost in my Provigil crash. I was doing much better at that point than before I had started Provigil, and the only reason I wasn't doing as well as when I was on Provigil was that my drug sensitivities now prevented me from taking Provigil. But increased drug sensitivities are fairly typical over the course of this illness. They are reversible, but not easily, and at that time I didn't know how to reverse them.
I remained at that high level of functionality for another year, but I pushed myself too hard over a number of months (without Provigil), which resulted in another crash. This was followed six months later by a moderate concussion, and I am currently still recovering from this combination of events. The concussion was particularly debilitating. My recovery has been going well recently, however.
In sum, Provigil did a lot of good for me, and I don't think it had a noticeable negative effect on my fundamental condition. I'm very glad I took it all those years, and I may take it again as my drug sensitivities continue to decrease.
@charlie1, if you are interested in taking Provigil, you may want to try gradually increasing your dose. I started out at 100 mg/day, and after six months moved up to 150 mg/day, which ended up being the optimal dose for me. Each person has their own optimal dose, so you probably need to experiment a little bit.
But I crashed after 2 (very) good days of my last Modafinil trial and that was without exceeding my AT.
So does that mean that I'm wrong in thinking staying below AT = available energy = no crash (PEM) ? I guess it's not cut and dry like that?? If this can happen without Modafinil, how can I be proactive against crashes when taking Modafinil?? That's not rheutorical, I really do want suggestions!
Basically, there's a fair amount of trial and error here. Also, identifying the cause of crashes is not always easy. Start low and go slow applies here, as just about everywhere else. An occasional crash may simply be a sign to back off the dose a bit. This may be temporary, as the body does some adjusting to the Provigil dose in the early stages of taking the drug.