Is there something wrong with me?

I'm starting to get really worried, whenever someone yells at me, (ie. My mom, a friend, my dad.) I cover my ears and clench, my eyes and start to cry. Sometimes I'll scream, (ears still covered eyes still clenched.) And I just CAN'T help it. Sometimes i get so stressed, I'll walk out of the house, muttering, cursing, crying, running deep into my backyard. I'm getting worried that something might be wrong cause I can't help it. Should I see someone for help? Or go to a doctor?