Sometimes i can scrape them off but not completely. Any one else with achalasua have this problem I am thinking they could be tonsil stones.
I suggest you see a professional to be properly diagnosed. Scraping can cause trauma and infection. It may further impede them from healing. It doesn't sound like anything related to Alchalasia
I do not know anything about tonsil stones. But a doctor would be able to tell you. The other thing is that it might be connected with candidiasis / thrush, possibly? But this is absolute speculation until you see a doctor.