I'm not sure how much help this will be but I'll give it a shot.
I've been in a pretty similar situation to yourself over the past few months. My grandfather passing away and an unrequited love situation were just part of a combination of factors which made me feel very down, showing some but not all signs of depression. I lost my appetite completely and with it a lot of weight. I cried a lot, which is unusual for me (I'm male btw) and I became distant from my family, to whom I am usually very close.
However now, I am back to my old self, my friends and family have noticed a difference and I feel brilliant most of the time. I still feel down occassionally, especially when I'm on my own, but not as often as I used to.
I recovered by talking. I know it seems obvious, all the depression leaflets + websites say it and I don't mean to be patronising but it really did work. I talked for a long time with a close friend of mine - he didn't come up with any useful advice but it was talking that made the biggest difference. I won't pretend it was easy - it took time but eventually I felt much better and I know you can too. I'm not saying this will necessarily work for you, but please give it a try.
I hope that can be of some help and I wish you the very best of luck.