I'm a couple weeks into giving up coffee because of heartburn, and yeah, this tracks... unfortunately. I've replaced heartburn with heartache (having given up a beverage I've enjoyed daily for over 20 years).
Good luck, my friend. I’m right there with you. It’s not the physical effects but the rituals and the social connections that I miss. I felt the same with coffee as I did with smoking, which I quit about 20 years ago. It’s remarkable how much these simple vice shape our daily lives.
What kind of coffee were you drinking? I replaced filter coffee with espresso and my heartburn went away.