If anxiety is causing those kinds of physical symptoms, and you aren't sure what to do, seeking therapy would be a great step. It won't magically cure you when you start going, but if you stick with it and do what the therapist says to do (honestly work on what he suggests) then you will start to see a difference. Although medication is helpful in calming the anxiety, it won't fix the anxiety - you still have to proactively work on that. Some go to things that help with anxiety are ... regular exercise, good sleeping habits (8hrs a night), breathing exercises, positive self talk, diet, hobbies (that are engaging enough to take you mind off of things) - and these are just some things but they are all things you have to make yourself do and you have to do them regularly to see any real effect. Hope this helps and you feel better soon.