I'm in my final year of University and I'm sure you can imagine the stress and anxiety that comes with that. In the past year i've had some on going medical conditions namely Inappropriate Sinus Tachycardia (IST) which means my heart beats abnormally fast sometimes for no clear reason. Add this all into one bag and for the last few months I've been constantly off my appetite, falling asleep at 2am-5am and waking up at odd hours if not every hour so you can see on the average night I probably get an average of around 2-3 hours restful sleep and the rest is broken and restless. I'm constantly on edge and find myself somewhat a little jumpy and jittery but not necessarily fidgety. I've lost interest in things and have unintentionally managed to seclude my self by not having the capacity anymore to deal with small talk or people and I think my family can sense me withdrawing though I don't mean to. I find myself practically biting the skin off my lips and around my finger nails and have developed other numerous "nervous" tendencies. I know I'm dealing with a lot of pressure but I'm not sure if as this has been happening for the best part of a few months, if I'm depressed or just under the weather? Any advice is appreciate.