THE WORST HEART BURN IV HAD IN TWO YEARS!!

Laying in bed with my hubby getting ready to go to slee start relaxing and drifting off all if a sudden iam woken up my a burning sensation in my throat and off to the bathroom i go bolting for the toilet. Holy hot sauce my throat is on fire i havnt had this bad of heart burn since i was 17 .  Iam 5dpo and period is is due on the 6-7 of December but holy lord if this is an earlie sign of pregnacey i sure hope it is cause this heart burn bloody sucks other sysptoms i have is creamy cm a raised bbt and moody more tired then usually and cramping very lightly on both sides hoping for my BFP  soon  iam taking a pill called tecta for acid reflux but i havn had this bad of acid reflux since my drinking days OUCHIE