Helpppp!

So I was smoking with a buddy, and he didn’t tell me that the blunt was laced in thc liquid. I’m not a stoner or anything but I’ve had my share of blunts. I was stoned out of my mind, freaking out and didn’t know what to do. So after everything calmed down, i now have trouble breathing. It feels like someone is sitting on my chest/ can’t get a full breath. My anxiety has been through the roof/ can’t sleep at night. This has been going on for about 3-4 days now. Any suggestions on what to do? I’m actually kinda scared.