Choking on acid & burning chest and stomach

I’m 4 years post op and recently started choking in my sleep. I take medicine twice a day for it and it helps normally but not tonight I woke up choking and it’s still coming up.It’s burning my chest and stomach now it sort of feels like the burning has spread in my stomach. Has this happened to anyone this far post op?I drink coffee in the mornings but that’s the only acidic thing I consume.Thank you!