Welcome to our group, seriousmary,
Well, you have several issues here that all need to be addressed. They are all independent of each other but have a cumulative effect. Thal minor causes low Hb in many minors, and yours is typically below normal at 11. It seems your periods are also causing iron deficiency, which in no way is related to thalassemia and should always be treated as a temporary condition, without resorting to long term supplementation. And then there's the low vitamin D, which can give you many of the same symptoms as the anemias caused by thal and iron deficiency, IDA.
First, your doctors will never know what to tell you about thal minor. The textbooks tell them it is asymptomatic, but anyone who is anemic already will have some symptoms. Same thing with IDA. And in recent years, we are finally learning how important vitamin D is and how much it effects so many other vitamins and minerals, and that many previously undiagnosed issues are the result of low D. Tiredness, fatigue, lack of endurance, numbness and tingling in the extremities, and low immune system are commonly reported by thal minors, but with IDA and low D as well.
Thalassemia causes depletion of many vitamins and minerals. This affects all forms of thal and we recommend that thal minors do supplement. Normally, iron is not recommended, and I will address that in the IDA discussion. We have a board on Diet, Nutrition and Supplements, and specifically, there is a post of recommendations for thal minors at
http://www.thalassemiapatientsandfriends.com/index.php/topic,4890.msg46774.html#msg46774Please review the recommendations. In your case, I would really stress L-methyfolate, natural vitamin E and high doses of vitamin D.
It is very tricky treating IDA in thals. Doctors generally want to see more improvement in Hb than is possible, leading to too much iron supplementation. Thal minors should never be given iron without being monitored through a full iron panel of tests that includes serum ferritin, serum iron and total iron binding capacity, TIBC. It takes a combination of values to determine deficiency. In your case, it does sound as though your periods are leading to IDA, so iron is appropriate, but the results should be monitored. If iron does not seem to be working, a different form of iron may be needed. Once the IDA is corrected and verified through testing, iron should not be taken.
Correcting vitamin D cannot be done with low doses. The level will barely budge. Speaking from my own experience, I feel that doses of at least 5000 IU D daily are necessary. I am currently taking 10,000 IU daily during winter months. I take 5000 when I can get sunshine. My level is above the minimal level of 30, but not even to 40. Optimal is at least 50. Many doctors give patients a weekly dose of 50,000 IU. I cannot stress enough how important D is to your well being. Most bodily functions are affected by D, and tiredness, depression and a low immune system are all related to deficiency.
Miscarriage. I hear that from so many thal minors. There are processes involved in thal thal lead to what is called a hypercoagulable state, where clotting becomes a serious issue. This is not usually much of an issue with minors, until they become pregnant. What typically happens is a clotting problem arises between the uterus and the placenta, reducing the blood flow and leading to miscarriage. I recommend that all pregnant minors take 400-800 IU natural vitamin E during pregnancy, as this will help to prevent this clotting problem. High doses of L-methylfolate are also recommended during pregnancy. 2-10 mg daily.