Yes! Oh for the love of everything, Yes! :P
Crying is a great release and allows your body to get rid of the low vibrations built up inside. Whatever you resist persists, and if you are just resisting crying then the sadness causing it will persist, and that's what's really causing the low vibrations. If you can lovingly cry over something to release grief, then it's a high energy action, rather that a low energy one. You will find your vibration raised rather than diminished often afterwards.
The important thing is that there's huge a difference between feeling sorry for yourself versus crying to release sadness inside. If you really feel like you are opening up and afterwards there's a sense of relief and peace then crying has done it's job properly. If you still feel like crap, then you could be holding onto the low energy and haven't let it go yet.
I'm a guy that loves to cry when I need to, which isn't very often thankfully.
Sometimes it's because of a shared grief and crying is the great release that opens the heart to compassion and love, but often it's because of the magnificence of the human heart and spirit. The human potential for brilliance is so huge and so vast that I'm just so glad I'm alive I feel overwhelmed by emotion. I think that is something worth crying tears of happiness over.
