Dyazide and heart

Our daughter spent her 21st birthday in ICU, Sunday the 13th. I took her to the ER with shortness of breath, chest pain and nausea on Saturday afternoon. She has been on Yaz since February with only the mild symptoms of: loss of apetite, mild nausea and some abdominal cramping. She was put on this BC to regulate her periods and relieve menstrual pain as well as excessive dark facial hair growth. All 3 of these were relieved by Yaz.
She has now spent 1 week in the hospital (2 days in ICU) and will be on coumadin for 3 to 6 months due to a very large pulmonary embolism (size of my knee cap) that was putting the right side of her heart in distress. She also has multiple clots in her right lung.
I am shocked to read through this website and see all that has happened to so many women. She can never take oral BC again in her life. There are no blood test results that indicate she was even predisposed to this type of reaction and is not family history.

I am new to birth control. Last week was my third week on Yaz. The first 2 weeks on it, I was fine. No real symptoms, but the third week, I began having anxiety (which I have never had before) and my heart would race every now and then. Also, I had a major loss of appetite. I would have to make myself eat even though I felt like gagging. I would try to go to sleep, but the anxiety would be too bad. (I took my pill at 8:00 every night) So, I stopped taking them. Yesterday was my second day off of the pill and all I wanted to do was sleep. (I guess from the lack of sleep due to the anxiety/panic attacks) Today my appetite is slowly coming back.
I contacted my GYN and they said they have never heard of those side effects from Yaz...but I looked it up online and there are tons of women complaining of the same thing.
They now want me to try Loestrin...which I am very hesitant of. I don't want to get my body back to normal and then start with the same problems again.

I am getting married in October and of course we don't want a baby right away....I must say...the old school condoms are looking like a better option every day!