hey everyone,

i've been experiencing some weird stuff lately, for about the last 2 months.
i've got the well-known "globe" feeling in my throat, like there's something stuck, but it's nothing, i even had it checked out by a doctor.
i also had some pain and numbness in my left leg, which went away after i took some magnesium tablets, now all of a sudden i have this slight pain in both my forearms, when i bend my hands back.
i've also gotten slight back pain which hurts pretty much when i bend over.
i'm 18 years old and am currently under some stress, for example i'm trying to get into universities for graphic design, have to draw a lot, interviews etc.
also, i quit school back home and moved to berlin fairly quickly, leaving behind my best friends, girfriend, family etc. and don't have many people to talk to here.
i've also been experiencing fatigue, kind of a strange feeling in my eyes.

overall, i just don't feel well.
any ideas what this could be?
thanks for the answers