Hi My Name Is Brittney Mitchell For A Bout 2.

Hi my name is brittney mitchell for a bout 2. 3 weeks now i have been in bed or out with friend or just chilling when my body geta calm i hear my heart beat and it only gets louder when i open my mouth .. i had a coule friwnds tell me a few different things but im really scared and really dont know what to do about it i really dont habe any papers so i really dont go to doctor very offton so at all so pleasr can tou help me understand what is going on with me please .