Emoticons.. I mean Emotions

Recently I have been experiencing a whale of emotions come over me. Sometimes happiness and utter joy; sometimes sadness and melancholy. Sometimes I lock myself up in my room and let my tears pour; sometimes I  just sit, think and reflect. You ask me why? I have no answer. You ask me what I think about.. I can tell you that.
Recently what has come to my attention is how fast life is going by, how fast i am growing up, how fast everything is happening. I was talking to someone quite close to me the other day and he agreed that he had felt the same and he could relate to how i was feeling.. It gave me some reassurance that i'm not the only one and i want to give you the reassurance that your not the only one either. 
Now, according to my mum, these are just my hormones taking over, she probably is right, but i feel there is a deeper meaning. that God is trying to tell me something. Is that normal? Please tell me it is.. 
I then actually read the quote on my pyjama shirt it said 'Its the little moments that make life wonderful' it made me realise a couple of things and made me appreciate life more.
The other day while i was thinking about all this i fell asleep, in the morning i find a text from my cousin saying ' Live every moment to the fullest, these seconds won't return' It really made me think.. I want it to make you think too. 

sorry shit post today im feeling emotional :(