Clouds are there, imagine the sun is behind them. When I feel bad, I connect to my little chisp of sun in my heart, I know it is there behind the crapish feeling. I live in a place worse than you for having tests! But I ordered the hair test. Have you done it?
Yes this is true, if I guess what you feel: you do not trust what this doctor told you, and it makes you hold back. You also did not feel you where humanly treated, only your syndrome was looked at, and too quickly. Loosing trust and hope. Feeling stuck. you want to do something, but you do not want to make a mistake. Hesitating. This is normal to feel like this after what you tell us about this doctor, and most doctors who would really help, they do it differently! Don't you feel angry? I do feel angry when I read about this experience!
The best you can do now is to build close human relationships with friends. Do not care about solving your health issues right now. Find people to whom you can say what happened, but tell it is this terms: how did you feel, how do you feel. Do not be ashame of any reaction you will have, because they will be the reaction your body will choose to untighten the body contraction you probably have from feeling stuck. When I do this, usually suddenly I find the situation so crazy that I start laughing, and then also some tears come out. If I let it happen, then I sigh or even yawn, and then I am me again. All this is physical but we are made ashame of it!
According to the people I am with, I can also start to tell events in a crazy exaggerated way. Most people don't know how to support emotions, but you can always trigger humour and laughing and jokes. You can lie and exaggerate things if necessary, go according to the abuse you feel more than the real facts. When you will laugh and expel your real emotions, people will not even notice it!
I love the video of this young guy stuttering and being such a big humorist, in American got talents. Any comic is also helping to feel better. And honestly, when I feel isolated, I watch those videos of AGT or the british and russian and more, but some countries do not show emotions... I watch the wonderful performances that shocked judges to tears... I love to share that humans are wonderful.