Classified two things incorrectly, am I screwed?

No, you are not "screwed" for selecting the wrong radio buttons; this is a common and correctable procedural error. The VA has a duty to assist in developing your claim under 38 CFR 3.159 and must consider all potential theories of service connection, including secondary service connection, based on the evidence of record (see *Savage v. Shinseki*). For your sleep apnea, you must submit a medical nexus opinion (often an IMO/IME) linking it to your service-connected rhinitis; for migraines, you need a nexus linking them to your service-connected PTSD, which will be evaluated under Diagnostic Code 8100. The VA is required to adjudicate the claim based on the intent reasonably raised by the evidence, not just the form's checkboxes (38 CFR 3.155). Your actionable next step is to immediately file a "Statement in Support of Claim" (VA Form 21-4138) clearly stating your intent to claim sleep apnea as secondary to rhinitis and migraines as secondary to PTSD, and proactively gather and submit the required private medical nexus opinions to substantiate these links, as the VA's exam may not adequately address them. This will formally place the correct theories before the rater, ensuring proper development and evaluation under the relevant diagnostic codes and the rating criteria in 38 CFR 4.130 (for PTSD) and 4.97 (for respiratory conditions).

*Disclaimer: This information is for educational purposes regarding VA claims processes and is not legal or medical advice. For guidance on your specific claim, consult an accredited VA attorney or claims agent.*