I wish I could get an appointment with Dr. House

I just spent 6 months with cardiology just for them to be like "well you aren't passing out because of POTS and we can't really refer you to anyone because i can't speak on anything but your heart. But your heart is totally fine... For someone over twice your age. Just keep chugging that water to manage your symptoms because medication will probably make your undiagnosed fainting worse." Meanwhile my migraines, joint problems, chest pain, and fatigue have been glossed over to focus on my heart, and what other doctors I see just don't listen or I'm only there for a referral and I don't really know what's going on(why do I have an allergist??)