tips for ER/hospital admittance

So my electrolytes (mainly my potassium and sodium/chloride) are not great… and not improving with the supplements I have on hand (I’ve been in a massive flare and have only been able to tolerate applesauce and rice cakes for a few weeks).

My doctors (MCAS docs, psychiatrist, physician) are urging me to visit the ER to correct my electrolytes. I’m in total agreement with that. Never felt like more shit in my life. Would kill for a burger

I, 21F, am away from my family and I’m going alone. I’m worried about advocating for myself, reactions to IVs, etc. Anyone have any sound advice, encouragement, or just tips? I’m really scared. I have a perpetual fear of dying and severe anxiety!!! :(