Dying of symptoms

I'll be 6 weeks tomorrow, and for the past two weeks, I've been SUFFERING from symptoms. With my first, I had nausea for a week tops. I did have heartburn but it wasn't till the end. This time I've had heartburn so badly since before I found out! I get it from anything I eat. The heartburn causes acid reflux, which makes me nauseous and causes vomiting. And it also makes me dizzy randomly at times. I'm struggling! I started taking Zantac which is helping but I'm very worried. It's already so terrible, I can hardly breathe at times. It's only going to get worse 😭 if anyone has any advice to help please hit me with it!!