Dear Welcome to HCM We understan your concerns I went through your details. I suggest you not to worry much. In fact worrying causes anxiety and your symptoms feel multiplied. You di not mention your age. The concentration problem is experienced by every teenager a well as any early adult. This could be due to the over creative brain which always is in search of creative ideas when normal ideal makes it dull an lazy. In that case you shoul give extra crreative tasks to yourself. In what ever case, please wait for the results to come, even though they have nothing to do with your concentration an diziness. You are feeling the symptoms again an again because you fear them. For psychotherapy and counseling visit http://psychocure.blogspot.com/ Hope this answers your query. Avilable for further clarifications. Good luck.