Stay calm. You are not in trouble just because an officer asks to see your pills. They’re just doing their job, and you have all the paperwork, right? Right?
Keep your prescription handy, be polite, and explain clearly what the medicine is for. If you have multiple conditions, just say it’s for “personal medical use.” That usually does the trick. And don’t joke about it—TSA agents have heard every “It’s my crazy pills” joke before. They didn’t laugh the first time.