Anxiety and panic issues need advice.

Hello doctors.From last year during first phase of lockdown this all started with a breathing issue almost every night made me stay awake i did google to rule out my symptoms and slowly as days passed sudden fear that its might be a heart issue and also that time I also heard a lot of negative news like very young people are having heart attack or stroke. Those news started developing more fear in me captured inside.There was loss of appetite less sleep lack of energy.So I consulted with gp he and I had gone for tests blood count,thyroid,sugar,hemoglobin and ecg all reports came normal.Ecg was normal sinus arrhythmia which again i thought that could be something deadly but doctors tell me its not an issue your heart is absolutely fine.But whenever i get some negative news my health anxiety starts again and I feel that I have heart issues.I cant sleep due to fear even I feel sleepy. I get sleep at 4am or 6am and wake up at 10am for office. I want treatment without any medicine. posible?