Heart Palpitations Post Tummy Tuck

Since having my tummy tuck on March 01, I was doing fine then about a week ago I started feeling as if I was having anxiety attacks along with heart palpitations after eating food(breakfast,lunch or dinner),chest pain, some lightheadness(or fuzziness) and a general overall feeling of uneasiness,like I am going to die. Yes, I know this sounds like textbook "anxiety attack" but I honestly don't feel like this is it. Any suggestions?