This is very serious. The symptoms you mentioned are typical of mercury poisoning.

Your daughter may be suffering from low T3 (thyroid hormone levels), low ATP (the fuel of cells), low thyroid function (because of mercury interfering with iodine), low blood sugar (because of mercury interfering with selenium) or a host of other things.

Different amalgam fillings can affect the same person very differently due to the following factors:

(1) The ratio of other metals in the filling can be different (like copper) and cause outgassing (vapor to come off the filling) at a different rate.

(2) Surface voltage on the fillings may be different. Amalgams are small batteries producing voltage close to jaw nerves which are connected to brain motor control areas.

(3) Many other factors.

Was the previous filling removed by a dentist trained in mercury safety? Is the new filling amalgam ("silver") or some other material?

The good news is that there is a lot that can be done in the mean time with diet and supplementation.

The bad news is that you may not expect her to get better and other more serious symptoms can develop over time. If this is indeed mercury, something should be done.

Please let us know how it goes.