I am waiting hopefully to be assessed as a suitable candidate for DBS. Your story has given me hope, as has another member today.
I hope that your problem with saliva is remedied soon. In Liverpool we have a community outreach occupational team who deliver speech therapy and methods to help with drooling and swallowing. Maybe you have the same service where you live so that you can get help. Contact your GP for a referral or get the contact number to self refer.