This feeling won't last, and you'll be worse off for it in the long term. Withdrawal from this sort of thing left me unable to get out of bed for a long period of time. Productivity went to zero. It has been several years, and I still have trouble concentrating. Please be careful.
Yeah, this is the reason I rarely take chronic doses and certainly nothing more than 1-2 pills a week. Tolerance usually doesn't build up much, but the comedown the day or two after long periods of dosing (personally >2 weeks, every day) made me somewhat more scared of the drug.
That being said, I highly recommend it, but to be used with caution.
Taking medication on a regular basis without having previously sanitized and perfected your life style (nutrition, sports, sleep, meditation, breathing...) to achieve perfect health is not very intelligent.
By the way, if you take this drug, you will notice your urine will smell differently (different chemical composition). That (logically) means that your body either retains something it should have gotten rid of or the opposite, meaning your are changing the chemical composition of your body. Science has no idea how this drug actually works (we only know that there is some kind of effect) and has no idea what its long-term effects are.
> That (logically) means that your body either retains something it should have gotten rid of or the opposite, meaning your are changing the composition of your body.
A change in the chemical composition of urine strongly suggests a change in the body, but doesn't "logically" prove it. In the simplest case you could imagine consuming some kind of dye which is simply excreted and not metabolized, which could change the appearance of your urine, kind of like in
(where the urine change itself mainly reflects what the body did not absorb).
Another possibility is that the body breaks down the drug and excretes all of the reaction products. In principle, that could occur without consuming any other substance, just by applying energy to cause a reaction to occur, or by providing a catalyst.
Also, some chemical changes in the body are beneficial (though the typical random change is most likely not).
I can't give an exact answer, but I can tell you that it happens gradually. Initially you feel great, and you're incredibly productive. Two months later you're taking the same amount, but it doesn't give you that same feeling so you increase the dose a little bit. This repeats for awhile until you start noticing side effects and try to stop. That's when you're stuck - you can't do the work you used to do unless you're medicated, and you can't stop without putting your life on hold for a very long time.
The thing to do is threshold dose, don't increase the dose, and take holidays for long enough to allow recalibration. It's simple if you understand the control system mechanisms at work.
By threshold dose I mean take no more than is needed to get an effect. I experimented a bit and found 50-100mg of modafinil (1/4 to 1/2 pill) to be effective and have never taken 200mg.
Escalation on tolerance is the exact opposite of what you want. On the first hint of tolerance, stop. Again think about the control system at work. Your body is trying to maintain homeostasis, which is usually a very good thing.
