Original
Yes. Its possible to be happy living with achalasia. You will however, need to adjust. You won't be "normal." You will need to grieve the 'you' and the life that you've lost. You'll lose aquaintances and some family. Cherish those that remain. Then find ways to go forward.
One thing that I (and I think most of us) doing s to carry a "spit cup." Make it beautiful; make it large. If you're going to an event, eat well before going, or after. That lessens the possibility of "having an eruption." But always take your cup.