Panic Attacks?

they started in high school. this sounds weird but i would be walking down the hall of school and if i was walking directly in front of someone i start to panic and feel like i was going to faint. it was really embaring. every time i'd go to school it would be a battle to not panic and die. everytime i turned the corner i would be so scared and shaky that another one would come. they are the weirdest feeling too because your body feels really shaky and weak and like you are going to faint and you have no control. now im in college and they have gotten better but i think it was just because i was in a closed in area in high school and now college is walking outside so its not as nerve wracking and claustrophobic. but i feel like if i go somewhere thats closed in i might get the attacks again like a mall for instance. i feel like the attacks are triggered by people being around me and i get them when people are walking towards me its weird..any suggestions