For the past six months, I am crying without no definite reason. I had a sad childhood, strange mannerisms and wrecked life before (my parents broke up when I was five) but I did not feel anything till this time. I cry often and experiencing random burst outs of sadness, even when I am travelling, walking or simply trying to sleep. I don't know if this is depression since depression should be diagnosed properly by a licensed physician. Thanks for the answers.
(P.S. If you have further questions, feel free to ask me, I will not hold back any info since your answers are a big help to me.)