So I am a 20 year old girl who has been having severe anxiety. At least I hope it's anxiety. I'm not sure. Lately I've been feeling really strange. My heart races for no reason. My chest hurts me all over in different spots randomly. And back pain where my chest area is. I have bad headaches. Difficulty breathing at random times. My legs feel funny and hurt. My arms are tingly and sometimes fall asleep. I am constantly dizzy and feel like I'm gonna pass out. I feel fatigue and have no energy throughout the day. My muscles are so sore. I am constantly achy and don't feel right. It's always something new everyday that I worry about. I'm scared I'm just gonna drop dead from a blood clot or heart attack. Every morning I wake up feeling so down and weird. I feel like I'm gonna die any minute. I'm worried something serious is going on with me. What do you think? Please help!