Anxiety/unknown issues

Recently (past four days randomly) I haven’t had a much of an appetite, like I know I’m hungry and my stomach is growling but I just don’t feel the “I need to eat,I’m hungry” logic I usually do, if that makes sense. My family was making fun of me for being irrational but as a minor I can’t really go to a doctor by myself so I’m kind of out of luck. They don’t understand that even though it sounds stupid it’s still a huge deal to ME. A little while ago I got sick and dry heaved, stomach got inflamed I think and couldn’t eat for a couple weeks after, and maybe I popped a rib or smth?? But now I feel this weird pressure on my left side ride below my rib cage and if I lean towards the left side I can literally feel it sorta move. Like sort of a pop back into place?? I don’t think it’s actually a rib as it doesn’t hurt or cause any pain but it is weird and a discomfort. It’s not like my family is that well off and we definitely don’t need unnecessary medical bills especially if they are just going to tell us they “don’t know” or “can’t do anything” it’s just really frustrating and there’s not even much I can do especially when my family just doesn’t understand that stuff like this causes me anxiety even if it’s minor.