I very much doubt that anything neurological would be to blame Shashi. When we have a neurological condition, it's all too easy to blame everything on that.

Most likely you will find that you have some gastric or oesophageal reflux, or even a hiatus hernia. Both of which can be uncomfortable, and both of which can cause your symptoms.

The test should be a breeze, and you shouldn't even remember anything about it. Let us know how you get on.