So many variables

We're home from the hospital and Grant started on his iron supplements today. Please pray that the iron will have the right impact and that his breathing will slow down as a result. Unfortunately, he is still really unhappy (thrashing, grunting etc.) and has thrown up both his feedings today. He won't take the bottle again. We are not sure if we should take out his feeding tube because it could be making his acid reflux worse, or to keep it in because that is the only way he is getting nutrients at this point. It appears he can't both suck the bottle and get air. But, we've heard of other babies who were so happy to have the tube out that they started eating again. There are so many variables and things to try. I am feeling pretty overwhelmed...