I'm a 15 year old girl , my problems started a while ago when I started feeling dizzy for few times a day, and it never stopsed, sometimes its so hard I need to hold on to something not to fall. in the last few weeks its even worse, my hands are shaking so much I can't even hold a pen, I can't feel my legs and I have a weird feeling in my chest and stomach, I'm taking a blood test tomorrow and I'm terrified, I'm afraid it might be serious. my english is bad, I'm sorry, its not my first language. Please help