Hi Lisa,
The drug Yaz (drospirenone and ethinyl estradiol) is a controversial drug, and because it is linked to clotting problems which can lead to stroke and also gallbladder issues, sometimes requiring surgery, I don't see it as an appropriate drug for thals, because thals minor through major regularly experience both clotting and gallbladder problems. I would recommend finding a substitute drug.
The multivitamin you are taking contains iron. This may not be needed, as iron is not recommended for thal minors unless a proven iron deficiency exits, because iron cannot affect the low hemoglobin level caused by thalassemia. The anemia of thal minor is not caused by any deficiency, but rather it is a genetic condition where one of the beta globin genes does not function correctly, leading to a lower output and a lower Hb level. If you haven't had a panel of tests called iron studies, taking iron should be avoided. Do they make an iron free version of the same multi? 1 mg daily of folic acid is not a large dose and is routinely prescribed for thals because it is needed for red blood cell production. It is also recommended for all women of child bearing age. In general, the multi is OK but I would suggest higher folic acid and a separate natural vitamin E supplement. At your weight 200-400 IU E daily would be sufficient. I don't want to recommend a lot of pills but a multi, folic acid and vitamin E are all recommended. Since your appetite is light, please try to concentrate on eating nutritious foods and avoiding junk food. Antioxidants are very important to counter the stresses of thalassemia, so make sure you get fresh fruits and vegetables.
There is no sure or quick method to eliminate tiredness with thal minor, but a healthy lifestyle is very important to minimize the tiredness and fatigue. One thing I would suggest is having your vitamin D level checked. Low levels contribute to tiredness and even can lead to depression. A majority of people tested are deficient in D because they have limited regular exposure to the sun. If your level is not at least 30-35, a higher dose than 1000 IU is needed. It is also possible to find liquid vitamin D supplements, so the swallowing pills problem isn't an issue.