Does my stomach contain squeezing machine n y did my heart beat went very much above normal? Part1 of placement training day 2:) :)

After the exams , uff the very next day placement training . . . But i felt much like actual placement itself... Oh god y do u scare me so much... God i ve got hell lot of nervousness n stage fear. . . Got to get rid of it... Actually what happened is the person who was giving training asked all the 150 students to tell about their achievements... he said it could be anything.. any small thing as his aim was to make each n everyone to talk on microphone... He asked everyone to talk abt their achievements and pass mic to next person.... Oh my god as the mic started to travel towards me my heart started beating faster and faster . . .n my stomach started squeezing n it was becoming warmer n warmer... But i did some selftalk in my mind " ok ok relax take deep breath" (took some cold air in made my stomach a bit cooler n felt a little bit relaxed) and told myself "if u r going to conquer this its not going to bother u again" and made myself somewhat convincing and then oh my god!! mic came to girl next to me ... Inspite of self talk my nervousness din stop my heart beat went up little more... Then next minute oh my god oh my god!! Mic was in my hands uff and i told with lil bit shaky voice " topped the class in 12th standard and go-- got gold medal" he told "oh oh thats good" hurray i felt. . . my heart beat dropped to normal immidietly ... Oh my god. . i could not believe i talked on MIC for the first time. . Felt some what relieved and also felt unique as i had mentioned gold medal .. But my hands were shaking and sweating as well . .phew :) some how finished.. See how talking a single sentence on mic for half a minute bothered me that still n till m thinking of it. . .(till night) ...That was not end of days placement training argg:-( there was another monster waiting to eat . . . It was mock interview. .. ill explain u in the next post... Oh god y do this thing happen to me???
Got to work on this . . Got to find solution 4 this . . How?. . may be google something like this " what to do when ur heart beat goes high on stage or when u know its ur turn to talk?or just give stage fear" may be ill find solution to convince myself. . .