i am a 24 year old female i have suffered from anxiety and stress on and of since i was around 17,for the past few months i have been having bad palpatations,feeling tightness in my throat and chest and feeling off balance and seeing lights in front of my eyes,these symtoms are different from the symtoms i have had before, i have been on a few different tablets that havent helped and for the past few weeks i have been taking cardicor 2.5mg,two days ago i went to the hospital because i felt weak and sick they said my heartbeat was abnormal and my heart beat was to fast,i also started being sick,they did blood tests and they were fine,but i still feel really ill,could cardicor make me worse?