I have a problem of overthinking too much ,and from what I gather I have fallen into severe anxiety disorder. I am scared even for the minute of things. I can't stop thinking about all the worst things that could happen to me. I am unhappy and feel so lost. Please help me. I have a feeling that my lymph nodes are swollen but when I visit a clinic they said that nothing as such. I think I am just assuming things.. I feel very lonely and extremely depressed. How can I come out of it?