Health anxiety

I literally am constantly afraid of something serious being wrong with me, every time I have an ache or pain. I’m 19 and idk what brought this on. It’s literally ruining my life because I’m always scared that I’m dying. I can’t talk to a therapist because I have literally no money. My fiancé and I just bought a house and there’s absolutely no way I can afford that for at least another year when I’m done with college and get a better paying job. I was going to make an appt with a psychiatrist but my co-pay was almost $300.00 just for a visit 😕

Has anyone else been through this? Please help