Is my first period coming!?

Ok so im 12 yrs old and here are my symptoms... backaches, stomach aches,headaches, cramps(they are starting to get really strong when they come,but i dont get them much..)i feel sick sometimes, i have a little bit a pubic hair, ive been growing breasts for 2 years, ive had discharge for over a year(almost 2), ive been moody too like when someone tells me something i think is something mean but its not i yell at them then a fight starts, my legs have been hurting, sometimes i get dizzy, ive been getting more tired, lazy, and my discharge is starting to turn to a yellow( I dont NOT have a yeast infection or anything! so dont bother to say it please!) like last week it was a dirty white, then its starting to turn to a yellowish white... not the bright yellow, like its getting darker... and my vagina stinks like when i go hop in the shower and turn on the water i bend down and get into a position where im almost sitting down and theres this bad smell coming from my vagina! is this normal, does a vagina normally smell!? and my discharge is coming clear and slimy.... and dries to like i said, a yellowish white(the dark kind not bright!) So am I getting close to my period? PLEASE help, im not asking exactly when or or the day, im just asking if im getting closer! so dont be mean about it please,,,am i going to get it like close enough to pack some pads in my backpack? just please help me here!