Hi Kristina Ko,
I have the same problem than you!!
February I was diagnosed with alchalasia. I got a Nissen fundoplication and meller myotomy.
That helped with the swallowing of food, but the spasms got much worse after the operation!!
I used nearly all medicine available, and nothing works!
As soon as I open my eyes in the morning, I need to RUN to the kitchen to get something in my tummy, otherwise the spasms are triggered!
Also after each "attack", I struggle for a few days to get everything back on track and working.
Did you get an answer from your doctor yet? Any advice???