I have major health anxiety and I tend to hyper focus  on my heart beat and breath. It’s so bad to the point that I’ll forget how to breathe properly and will start to breathe through my mouth instead of my nose. I know this is bad but it’s hard to control. I’m constantly checking my heart rate which tends to raise my anxiety and at times will lead to palpitations and physical symptoms. Well I went up the stairs to the third floor and naturally my heart started beating faster and I could feel it in my chest. I started to freak out that I was having a heart attack and almost gave myself a panic attack. I could feel my body going numb and I got a little lightheaded which of course made me really think I was having a heart attack. Anyone else relate to this or am I completely fucking crazy? I was able to calm myself with a guided meditation for anxiety, s/o to the Calm app. Anyone have advice on how to deal with this? Whenever my heart rate goes up, I automatically start to think the worse😞tired of living like this.