Dear Reeno, welcome to the forum. I hope we'll be able to help you find your answers and make you feel comfortable.
My reflux was atypical and it affected my breathing, my voice and my sinuses as well. I ultimately went to National Jewish in Denver where they diagnosed vocal chord dysfunction secondary to severe GERD. There are exercises that you can do to help alleviate that and I would google that to find them.
Saying this, however, I never had acid come up as you've described, and I would find the best GI you can to run tests to determine how severe your reflux is. If your reflux is coming up like that, I would hazard to guess that you are also aspirating while you sleep, are you finding that you are having breathing problems as well?
Until you know the extent of the problem it is difficult to help you with symptom control. I would start, however, with an excellent resource that Kitt has posted on the top portion of the topics under GERD-Heartburn; there are many self-help items that you can do to help alleviate some of the problems, but you really should get to a good Dr. and soon!
Above is the link to Kitt's resource titled GERD-do I have it? Read through this, I think it may help!