What is wrong with me? Is this power of the mind or is this real?

Hi. For the last few days my diet has consisted of KFC, Pasta, chocolate and sweets. Last night I stayed around my mates houses and we went for an all nighter. I suffer from Anxiety almost 24/7 and so I started panicing. All of a sudden I felt bloated and full and when ever I thought about eating fatty foods I felt sick. I stayed up all night and all day I have been tired and still have that full up feeling. Is this anxiety? Or is there something wrong with me?