Eeeeeek, thats rough. Sweety, I truly think that you may have panic disorder with agoraphobia. I am not a professional, of course, but pleaseeee do try to get yourself seen by one. You said that youre a bit of a hypochondriac and thats okay but I have a resource for you that I think you should check out. It is a free online CBT website. CBT is the therapy used to treat panic disorder. Again, as I am no professional I cant say for sure, however looking deeper int the disorder may help you figure out for yourself if you are struggling with this or not.