Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. Even though your symptoms do correspond to anxiety disorder in one look, you should also understand that these symptoms can also come fore because of disappointment. I sincerely suggest that you could be a victim of your own negative thinking. Disappointment which arises out of unforeseen life events do bring such symptoms like sadness, irritation, anger, lethargy, lack of interest, lack of appetite etc. Please understand this fact and make sure to introspect. Talking to your friends, out door activities and being creative should give you relief. Find the reason for your disappointment and consult a psychologist if need be. Psychotherapy techniques should suit your requirement. If you require more of my help in this aspect, Please post a direct question to me in this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques. Hope this answers your query. Available for further clarifications. Good luck.