I hope the Entocort does the trick for you. Just one quibble -- three times a day? It is supposed to be taken all at once, in the morning. This is not simply a matter of opinion-this is what the manufacturer has recommended. A total of three pills, or 9mg a day, taken all at once. With or without food.
Some of your anemia might resolve if the meds help enough, but for the time being you should probably take supplements - Solgar's "Gentle Iron" or any supplement with iron bisglycinate or iron chelate. My daughter has been taking them for years with no side effects, except lower zinc, which we fixed (through trial and error) by having her taken no more than 10 units of zinc, with a meal, two hours after she has taken at least 50 mg iron.
Especially for a pre-menopausal woman, it is nearly impossible to get enough iron from any food or cereal EXCEPT liver.
Which usually means supplements are a must. And, because all foods, meds, and other supplements interfere with iron absorption, the iron needs to be taken only with OJ, at least two hours before and two hours after having any meal, supplement, or med. Taking it in a multivitamin is nearly useless.
Most docs are clueless about how to supplement, especially when Crohn's has to be taken into consideration.
If it hasn't been done before, have your zinc and B12 checked, and vitamin D 25 hydroxy, as Crohn's patients are often deficient in all three. Folate could be low, too, especially if you are taking Pentasa. Low B12 can certainly contribute to fatigue, and you need to have the right mix of zinc, folic acid, and B vitamins for your body to be able to fully utilize the iron. Our bodies are pretty complex, where a deficiency in one area impacts other areas.
Daughter (22) Dx'd Crohn's 3/06. Misdiagnosed for two years, including by top pediatric Crohn's specialist as stress. No symptoms for the past two years. Recent colonoscopy shows stricture gone but still two spots of inflammation in TI. Used LDN to taper off Entocort. Was on Entocort since April 06. Never had D. 4.5 mg LDN, SCD multivit, homemade yogurt, 5000IU vit D3, 500 mg calcium, 27 mg iron, monthly B12 shots, daily oral B12 1000. SCD diet modified to include potatoes and rice.