Hi dear I am so sorry to hear that, and I really understand what you are going through. My dad had a bad heart all his life, and some of the medication was causing him to cough, be dizzy and throw up.
He did go at the end, but it was an end to the suffering for him. He is still in my heart I can feel his presence when I am doing certain things that we use to do together. It will be 19 years next month.
I hope your dad will be OK, and I hope that you learn to accept what you can not change. Sometimes when someone is suffering so much it is best for us to let him go.
I am sure that no matter what he will still be with you.
I hope you have your family to support you.
