Yesterday about 5 pm when I went to gym, I took a pill based on a coffein. I have 22 years, and I am a girl and have 50 kg. My heart startet pounding very hard,more than 100 per min and I took one pill for high preassure and one sedative. It's been 24 hours since than and my heart pounds 90 per min. My preassure is normal. I am scare a little because of it, because it pounts hard and i'm resting. When it's gonna get back to normal and do I have a reason to be scared?