Yep, exactly the same as you. I comes and goes and I can go months and be fine, and then it's back.
Certainly I think It's partly stress related, and spicy food, coffee and alcohol can affect me.
Husband keeps saying I should go to the Docs would prefer to self treat unless it becomes constant.
Usually just take Tums. Their always in the draw by the bed, just in case. Find stronger stuff like Gaveston makes it worse.
If it's any consolation my Dad has had the same problem all his life and his is now 96.