I had major heart attack, active thyroid, Crohn’s disease, diverticulitis, bronchitis. What’s wrong with me?

Iam a female, 56 years of age. My medical history is lengthy, but here goes, November 2004, major heart attack, stent fitted, left with angina and only 3 chambers in the heart working, approx 4 to 6 months later after complaining of severe fatigue, bloods showed a TH level of 98.6, diagnosis, under active thyroid. 12 months later diagnosed with chronic Fibromyalgia, 2 years later diagnosed with Crohn’s disease, recently diagnosed with diverticulitis.
Presently being treated for bronchitis and flu like symptoms and sores to the face which is treated with a steroid cream, as it is dry and very itchy.
Why am I not getting better, my thyroid dose has been increased and I take vitamin D every day, iron tablets 3 times a day as iron levels came back at 15, I’m on my second lot of anti biotic and still have the flu like symptoms and the chronic fatigue, whats wrong with me?

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