I've been feeling horrible for the past few years but things just keep getting worse.

I feel disconnected from the world. I used to be extremely extroverted-social/always had a big group of friends, now its hard for me to even talk to my old friends let alone make any new ones. I feel like the whole world is out to get me like I cant connect with anyone because im soo paranoid thinking that theres a possibility that they might not like me or that they might think that im not cool enough to be there friend which is so childish but i cant seem to stop thinking about that. I also get into really bad moods where i dont want to be bothered by anyone. Its also with my family; i barely speak to any of them because im soo paranoid about them not liking me! the only one who has stuck by me through out this is my best friend because shes kind of gotten used to me being like this;but i havent! i cant talk to anyone;i cant connect to anyone;i feel like im not living the life im supposed to be living! i always have a feeling of sadness deep down inside;like if i wanted to cry.

Ive started having suicidal thoughts;something i never thought i would experience!
I'm a junior in college and ive always maintained a 3.0 or higher-however this semester i flunked ALL of my classes. I feel like im going crazy; I'm trying to seek out for help but i dont know how to! I recently told my mom that i don't feel normal that i believe theres something going on with me and that i need some help;and she isnt taking me serious!

i seriously need some help i dont know how to describe it specifically but i just feel like im going CRAZY for no reason! i have a wonderful family;before this semester i was on the road to med-school..got into the college of my dreams i had a great social life--i dont know whats wrong with me!

help!