Welcome to Healing Well! I'm so sorry to hear you're having problems and pain post-stent. Did you call your doctor's office? I agree with Alcie that it's the very first step. I wish I could provide more information, but I don't really have any experience with the topic of stents.
In any case, vomiting will introduce highly acidic fluid into your healing esophagus, which will naturally cause pain in addition to the stent pain itself.
Please stick around to share your experience, as there is no doubt that others will visit asking for similar information, and your posts will make a real difference. We're here to offer support and encouragement, even if we're not able to provide any real help.
I wish you the very best!
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.”