The electrophoresis is the test that gives the results as percentages of different hemoglobins, and the results do confirm thal minor even without the DNA test. So many of the symptoms you mention are reported by other thal minors but doctors usually don't associate them with thal. You can learn more about thal minor in the post at
http://www.thalassemiapatientsandfriends.com/index.php?topic=1575.0Has your hemoglobin level always been around 11 or have you had periods when it dropped lower? Do you take any supplements now?
This is something I have been recently asking minors who experience symptoms similar to many of yours and it is something that piqued the interest of one of the top thal cardiologists in the world when I brought it up to him at the Singapore conference. Many of the symptoms that thal minors report are the same as symptoms of pulmonary hypertension (PHT or PAH). It is known that thal intermedias have a very high incidence of PHT and there is a possibility that minors may also have a higher than normal rate of PHT, and the doctor agreed that this may be worth investigating in thal minor. Even mild cases of PHT can cause symptoms and PHT is treatable. To top it off, as it may also relate to you, is that there seems to be some connection between epilepsy and PHT. Ask your doctor if you can be tested for PHT.
There may be some supplements that can help correct some of the deficiencies that are often found in conditions of anemia that are not iron related. Folic acid, B Complex, vitamin E and D (and C for minors), magnesium, zinc, L-carnitine and additional anti-oxidants may be of some value.