Struggling with constant physical pain and the strength to carry on

As-salamu alaykum, everyone. I'm reaching out because I've been living with really bad body pain and discomfort for a while now. I'm only 18, and I've seen several doctors, but the clearest explanation I've gotten is low iron and reassurance that 'I'll be okay'. Honestly, it's wearing me down every day, and sometimes the thought of not being able to bear it anymore crosses my mind, even though I know that's not the path Islam allows. I'm trying to hold onto my iman and find patience, but it's so hard when the pain doesn't stop. Has anyone else faced something similar? How do you find the strength to keep going and trust in Allah's plan when your body is constantly suffering?