I'm really sorry that you've developed this as a result of anorexia. *hug* I want to tell you not to blame yourself. I don't think you chose to be anorexic, did you? There's a difference between something happening to us as a result of our actions and our being "to blame" for it. I can understand that you will probably have feelings of "I did this to myself" but please remember that you didn't do it on purpose.
There are different degrees of osteoporosis and also treatments to keep it from getting worse. I imagine those are things you will find out when you go to the osteoporosis clinic for a consultation. Since you don't know at the moment how severe your osteoporosis is, if you did an internet search, it would be hard to gain much definitive information.
Does doing an internet search about illness cause you anxiety? You could do a search to learn "if my osteoporosis is mild, then this - if moderate, then this - if severe, then this" but if you tend to lean towards assuming that yours is severe, then that might not be a good idea.
I tend to assume any physical condition I have is mild or not important until a doctor tells me otherwise. I think I get that from my dad - it's called "denial", I think, although I prefer to call it "anti-catastrophizing."
Waiting for information about a medical condition and to learn what your treatment plan will be is always tough. My best advice would be to try to distract yourself until you get more information and find out what you need to do for the condition.
I've been dealing with high blood pressure lately that won't respond to medication. I didn't take it seriously until I started testing it regularly at home and then I got very anxious. I am on my last "medication trial" at the moment. If this doesn't work, I have to get a ton of blood work to see if my kidneys and who knows what else are functioning properly. I have been struggling with worrying about having a stroke, since those run in my family.
I'm just adding that personal information to say that it's hard to wait to find out the details about a health problem.
I'm older, but I was around your age when I was diagnosed with an autoimmune illness and I remember my outrage and indignation. I felt like "But! But! This can't be - I'm too young!" It really sucks to get a diagnosis at your age.