Things may be going worse than you think, OP. The lack of a response means #1) Things are so bad that they are thinking of letting you go or #2) Things are so bad that they can't deal with your situation, so small it is compared with the business's larger problems.
Please start getting your resume polished and contact headhunters. It does not sound promising for you, and you are much better off looking for a job while you have one. Don't quit!! No good in that, and you'll have a much harder time finding a new job if you do. Good luck to you. Keep us posted.