Hi, ive noticed that now before i go to sleep my heart races and feels like its gonna fly out of my chest. It can be before a nap or a normal nightime sleep too. I read up that it could be because if stress and im a senior in high school getting ready for college which has completely wore me out. I was also diagnosed with asthma a few weeks ago which was my first real health problem that ive ever had. People have told me inhalers make your heart race and i always take my inhaler before i go to sleep. Any suggestions? Should i be worried?