About eight months after I started taking yaz, I started feeling symptoms of anxiety. The first time it happened, I was laying in bed and my arms started to feel numb, then my heart started fluttering and I felt like I was having a heart attack. It has been 8 months since this happened and I still feel anxious and restless at night. It keeps me from sleeping. This never happened to me before. Could this be a side effect from yaz?