I've never been a person who let things get to me as in make me feel down sad. I can feel lots of things wanting to make me feel hopeless and sad but never really think about it. Lately I feel very down and lost about what I should do I just cry a lot at random times I will be doing things and then a thought will come and I will cry. My friend told me she thinks I need to go to doctor she thinks I'm depressed she says her mum was the same and she needed medication. Ive never felt like this before I mean I've veen sad but I get on with it get over it. I tried to Google depression but I don't really understand so my question is how do you know the difference between being sad and depression?