I’ve (20f) always had really bad panic attacks, but as I’ve gotten older they have changed and become far more severe. I used to just get a drop in my stomach and hyperventilate but in recent  years I convince myself I’m having a heart attack and am going to die which makes me freak out more and I have way more physical symptoms like heart palpitations or almost faint. Even worse, sometimes I just want to die. Like I get overwhelmingly hopeless and just want to drop dead. Sometimes i feel like I need to check in somewhere or something bc it’s so bad but it usually only lasts a few hours and then I can come back fine. But sometimes it concerning and I have nowhere to turn when I feel this way because I can’t burden those around me. Idek what do do:,( Is this even bc of anxiety?