Health

I don't know how to explain this. Basically I feel very anxious a lot and get panicky and trembling over nothing. My heart rate increases when this happens and I have no drive to do anything. At school, I cannot focus and I don't want to interact with anyone because I feel so down. It's been getting better but have been having moments where I can't breathe. I've always had an idea of depression and anxiety but I don't know for sure if these could be signs? I don't want to come off as if I want attention but it's got to the point where when i get up everyday I just feel so drained and I dread the day to come. I just wrote this so i could get it out there as I haven't really talked to anyone about it and it's been on my chest for a while now. I want to tell my parents but it could just be a teenager thing and I don't want to make a big deal out of nothing. If any of you could maybe give some advice that would really help.