Agreed... First and foremost is to educate yourself on anxiety, you've done the right thing by coming here. You'll see that you're not alone and that anxiety takes on many shapes and forms.
Since you asked for someone to share their story, and I kinda feel like typing anyway...
Mine started on 3/18/13 in the middle of class, I was in my final semester of college. It was a day off from work, and my only plans that day had been to attend this one class and meet a friend for a burger. Not exactly a high pressure stressful day. In class, I noticed my vision seemed to blur and it took effort to focus on the lecture. Lightheadedness hit me, and the right side of my head started tingling strongly. I felt like I was going to pass out, my heart started racing. I then texted a friend to come get me, and we went to the ER. After some blood work and a chest xray, they released me with some hydroxizine (an antihistamine), and had me take one right away. They stated that I had high anxiety and had a panic attack, and needed to see a neurologist.
I was dumbfounded... me, a panic attack? I was always the calm one among my friends. When people worried and made rash decisions, I was always the rational one that didn't rush, stayed calm, and made sense of even the most chaotic situations. My friends would always comment about me being very laid back and not worrying. And now I have anxiety and (allegedly) had a panic attack? It was hard for me to believe, even harder for my friends who encouraged me to keep researching the real cause of the problem.
Throughout the year I visited my physician, neurologist, and even a cardiologist after a couple of bad attacks with chest pain, high pulse and blood pressure. Every test came back clean and clear. It wasn't until a few weeks ago I accepted the anxiety conclusion and began researching it, and ended up here. Funny thing, once I accepted it, I began to feel a lot better immediately. Sure, I still have symptoms, but I understand them a lot better than before.