POTS treatments ♡

Hello! Im a 23 y/o women that works in a warehouse as an assistant manager and streams video games on the side. I was recently diagnosed with a chronic illness; POTS (Postural Orthostatic Tachycardia Syndrome), best way to put it, I'm allergic to gravity. When im standing my heart rate shoots up to 160-180, and my blood pressure plummets. I've been on several medications that havent worked, I've done the high sodium diet, the extra electrolytes and hydration, I've asked about IV Fluid clinics (My doctors have no idea anyone in the area that does them). I was told I have 2 medications left to try and if they don't work, they don't know what else I can do. One of these medications is $70, my copays are $60 (and it definitely sounds like I need new doctors to explore my options). I'm currently out on disability making it extremely hard to afford this on top of rent and everything else, and I can't return to work until I can control my condition and I can't attempt to control my condition unless I can afford it. The healthcare system is a bit broken and I'm asking for help so I can get better and I can return to work. I know its sounds like a whole lot of hoopla but I'm too young to be defined by an illness and I want to fight it, but I need help. So anything helps and will go towards my medical bills/getting back on my feet to go back to living a sorta normal life style!