Stabbing pain in neck and shoulder.

Hi Since yesterday I'm suffering from hand pain. My both hand is paining. I'm feeling stabbing pain in neck, back and sometimes in shoulder. I also feel pain in jaw. Sometimes I feel stabbing pain near chest. I searched on Google and all these symptoms show in heart attack. I was unable to sleep at night. My maternal uncle died of heart attack 1 month ago. His age was 48 only. I'm always thinking about him. Now I'm afraid if I suffer from heart attack. Seeing so many celebrities and people around me dying in early age from heart attack making me worry. I was covid positive 1 yr ago since then my life is not same anymore .. Yesterday all of a sudden I felt dizziness and choking with all those symptoms. I'm always afraid that I'm going to die. I also suffer from serious panic attack but this time all these symptoms making me feel like I'm gonna die. What should I do? Is it really serious or it some kind of anxiety issue?