vomiting don't feel like eating help

I'm 17 female and I think I have health anxiety but I got up around 1 pm threw up this morning didn't eat all day because I didn't feel like eating and cleaned my room a little bit and after I felt really dizzy like I was going to pass out so I sat down and felt horrible after a couple of minutes I felt like I was going to throw up and I did I threw up water after that I still felt sick i had the shakes too so I tried to eat but every time I took a bite I felt sick like I was going to throw up and every time I took a bite my jaw felt week what wrong with me is it low blood sugar does any one else feel like this Im overweight helps Im scared something really wrong I feel week and really tired is this all health anxiety

Could I be having a silent heart attack because yesterday I felt like I was having a heart attack my arm was numb my heart hurt and it was hard to breath and today my heart hurts today and my stomach hurts I'm scared I'm going to die: (

Just breathe and relax the best way that you can. Drink lots of water and stay away from caffeine.

OK thank you but i have been staying away from caffeine and drinking lots of water I feel so sick like I have the flu but i dont and don't feel like eating and been vomiting and my heart hurts I'm just scared