Just need some support

I’m 20 years old and I’ve been having a really hard with my anxiety festering in a physical sense if that’s understandable. I’ve had some arm pain for maybe the past 2 days and I’ve convinced myself that I either have diabetes or I’m having a heart attack or maybe both lol. Tonight I felt really weak in my legs, and felt like I was gonna pass out but that only came after I read the symptoms for both. I ended up having a really bad panic attack about it. It’s gotten so bad that I’ve been so scared of going to sleep because I’m convinced that I’m gonna wake up. I know need to get in contact with a mental health professional but unfortunately with strict parents that don’t really believe in mental health like anxiety or depression it’s just been really hard. Is there anything that I’m able to do to get a little calm so I can at least sleep for today?

(I’m really sorry if there’s any typos I’m just really desperate for any kind of help)