Sick from raspberry leaf tea?

I’m 33 weeks and yesterday I started drinking this, I drank it cold. then today I drank it again and soon after I started getting really lightheaded, I couldn’t breathe, I seriously felt like I was going to pass out and I was laying down when it started. I have no idea what else it could be but I started probably 10 or 15 minutes after I finished the tea. Could this have been caused by the tea? It was really scary