Works like a charm, if you have your own nameserver:
zone "no-ip.org" {
        type forward; forward only;
        forwarders {50.31.129.129; 69.72.255.8; 69.65.40.108; 69.65.5.122; 83.222.240.75;};
};

zone "no-ip.biz" {
        type forward; forward only;
        forwarders {50.31.129.129; 69.72.255.8; 69.65.40.108; 69.65.5.122; 83.222.240.75;};
};

zone "no-ip.info" {
        type forward; forward only;
        forwarders {50.31.129.129; 69.72.255.8; 69.65.40.108; 69.65.5.122; 83.222.240.75;};
};

Diagnosed at 40. Ritalin does have its merits.

Over-diagnosing may be possible, over-treatment however cannot prevail.

Amphetamines in low dosage have a paradox effect on people with ADD: it calms them down.
If you do not have ADD, amphetamines do not calm you down.
It is therefore not possible to gain positive results from Ritalin, if you do not have ADD.

I do recall that my grades were very dependent on the teacher I had.
However, I find it hard to identify a "shitty" teacher, since it is a totally subjective category.

The problem is that any one teacher will be "good" for some people and "shitty" for other people.
The same goes for the entire concept of "put all kinds of personalities in a single room and make them listen to a single person".

As long as the fact is ignored that there are different personality types, the whole "industrial normative education system" will make some people suffer. It is this suffering that has negative long-term effects, not actually the ADD itself.