Trouble making close friends in med school

So I feel kind of embarrassed about this but I feel like I've been having a hard time making friends in med school compared to other people. This is my first year and it already seems like there are established "cliques" of people. I think a big part of this is the fact that I study the best by myself, whereas lots of other people seem to form groups. I'm also a really shy and reserved person. Has anyone else felt this way in med school??
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums