Oh, wow... I hope you're alright, OP. D:
The last time I was at a hospital was to visit my grandfather after he had a stroke while visiting my mom. He lives in a different province so I don't get to see him very often and especially in a hospital, I didn't really have any idea what to say so it was fairly awkward. If we're talking about going to a hospital for my own problems, a little over a year ago I went in... begging for painkillers, lmao. I went to the ER of the hospital that my pain clinic is a part of hoping they'd be able to access my records, see that I commonly get prescribed the drugs, and that my next appointment was just so delayed that I'd run out, but apparently they couldn't. I had to wait around for a long time but eventually the doctor gave me what I needed (along with a stern warning never to book my appointments so late so that I don't have to get narcotics from random doctors that don't know me).
For an interesting ER visit, the time-before-last that I had to go to one, it was because of complications after a minor surgery I'd had the week prior and they ended up admitting me for emergency corrective surgery later that night. I was there about 12 hours before the surgery actually happened and it was probably the worst day of my life. They messed up taking blood early on when I was admitted which made blood pour down my arm, which made my not-so-good-with-blood dad faint, which made him get admitted to the same ER. Then I had an IV stuck in me all day and I wasn't allowed to take any of my medication so I was miserable, bored, and in pain. It was the day after Obama got elected for the first time so the news on the TVs in the waiting room wasn't showing ANYTHING ELSE except sometimes the scrolling news text at the bottom would flash up saying that my favourite author had died the day before. :'( Then later, after my surgery finished, we found out that I'm mildly (?) allergic to morphine which is what they'd given me in my IV after the anaesthetic wore off, so that wasn't fun in the slightest either.
(I technically have also been recently for tests and appointments and stuff but I'm assuming OP means ER or procedures moreso than clinics within a hospital...)