My 1st panic attack

I was 17 years old at the time, now 18 as of last week, and i still continue to have feelings of intense discomfort and many times feelings of fear over little things or sometimes for no reason. One night I was sleeping in the basement because my cousins were staying over for a month in my room, I randomly woke up around 2:00 am and had this extremely sharp pain in my chest. Trying to stand up caused so much pain in my chest,breathing was difficult, I felt numb all over and my heart was beating so fast that I thought I was going to die. Every time I try to calm my self down, it never works and I haven't told anyone about my problem because I fear that my parents wouldn't take it seriously since I have been hiding this problem for years now. It's like i'm suffering slowly and I just don't know how to handle it.