Health Anxiety and Panic Attacks

Hi,

Im a 26 year old female and I was diagnosed with depression and social anxiety 5 years ago while i was studying at university, went to a psychiatrist for about a year and a half and was pescribed medication that helped with physical symptoms and overall i started feeling much better. I gratuated from university and got a very good job, i still felt anxious at times at work and it would take me a while to get used to things and people but overall i was working well. The real problem started a few months ago when i started getting heart palpations on and off, then one day it got so bad that i had to go the hospital where they checked my blood pressure and it was very high. I had to take a 3 day leave from work. On the 3rd day my heart palpatations got so bad that i thought i was going to die. Was rushed to the er where they did an ecg and everything was normal. Was given Risek to take for 3 weeks. Things got better and i started feeling quite well. A few weeks later i started getting heart palpations again and this time i also started having gastric problems. Everytime i would eat i would throw up and my anxiety was getting worse. Had a lot of joint and muscle pain. Got an abdominal ultrasound and some tests done, turns out i have fatty liver disease and i also have severe vitamin d deficiency. My family has a history of heart disease and everytime i would get chest/back pain i would assume somethings wrong with my heart and im going to die, i have never felt like this before. Got so scared that i got more blood tests and a chest x ray done and those were also okay. The thing is ive gotten so scared that for the past 2 weeks i have constant chest/back/joint pain and i feel nauseous and my anxiety is acting up and i think i will get a heart attack and die and its gotten to the point where i cant function normally, its affecting my work and i dont know what to do. I cant sit through traffic because it triggers a panic attack, cant listen to music, and even people talking loudly make me anxious. I cant stay at home alone because im scared that something will happen to me like a heart attack and there will be no one to take me to the hospital.