Extremely Narrow Palate ? (19M)

I want to know if I have a narrow palate? I went to the orthodontist to fix my overjet. But he was talking about EXTRACTING my 4 premolars and then doing braces. I was a bit skeptical so I searched this subReddit and found out that extracting would’ve been a Disaster. I wake up with a blocked nose everyday and generally feel like I’m breathing with only 70% potential. Even my face is very flat and I have a weak jawline so all this makes sense now. I need your Advice on how to proceed and WHAT to tell an orthodontist (going to a different one). Because here in India I feel like the practise of expansion is very rare.