Since you have managed to start a new thread in this section, all you need to do now is find the relevant section for your question, and start a new thread in that section, as described by jellybean, above. Give your thread a relevant subject title in the first space, and the bulk of your question in the bigger space. Hit the "Create Thread" button in the bottom right hand corner once you have finished.
We are not Vets, Avian or otherwise. If you have any serious doubts about your budgies' health an appointment with an Avian vet should always be your first point of call.