I also got the blocked drain sound and felt like it was stuck in my throat. I was told it was swelling and can take ages to clear. The more you force your self the worst it is.
I was like that. Really struggled to eat and drink and they were talking about a feeding tube. Milk (I hated it before the op) was my life saver with sugar free flavouring (just a drop). I’m 2 months out and just starting to come right now. Can have soft food.