Sorry you're feeling so sick! I can reassure you on one point. While the coughing hurts (try ice...it worked well for me) you don't have to worry that it will harm your wrap. I coughed from Day 1 until about two and a half months out, and my wrap remained intact. I know it can be a concern--it certainly was for me.
Hope you feel better soon!
Nissen Fundoplication 2/09
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”Eckhart Tolle