panic attack?Dumb? pls help

i'm a new grad and been an lvn for 3 months now. I luv nursing school, learning something new make me just say 'wow'. Now, i've been in my job for 3months. working @ med-surg in an acute long term hospital. I like it co'z not everyday is the same. I always get different pt's with different diagnoses. My problem is that i feel so dumb. I'm so scared talking to the doctors and explaining things to them. Sometimes the nurse that i'll give the report ask me why or how. sometimes i don't know what to tell them. Everytime i go home, i don't feel so comfortable. I feel like i'm having a panic attack. I wake up in the middle of my sleep,thinking about my pt's. are they okay. what happen after my shift. it happened to me most of the time. I have talked to my schoolmates and told me they are okay with their work now. They have adjusted already. I told my mom that i want to quit. she told me what will i learn in a nursing home. That my schoolmates adjusted already co'z they have the same pt. all the time. My pt's have mrsa, vre, i do pre-op before surgery. when i look @ my co-workers they were so relax. they have time to sleep, chat and so on. Me on the corner so busy and quite. is this normal to a new nurse or just me? and by the way were having a survey soon this month.added to my anxiety.