Trigger warning : breathing issues and obsession

It started when I drank one day and the next day felt like I couldn’t get enough air . I got anxiety over this , went away and didn’t think too much of it. I felt like I couldn’t get enough air again and started panicking more. Last night I tried to sleep and felt like I stopped breathing and had a panic attack and now I can’t stop trying to control my breathing my chest even hurts. I don’t know what to do and put this on dp because something similar happened one time when I had it and I got it the next day after the panic attack. Any help? Graduations coming up. I just want a clean state of mind.