Period help?

Ok so i dont usually do this but i mean i dont think i need to go to the doctor. First nothing to do with pregnancy or any of that. Ive been on the depo shot for a good while and the first period after my shot is really long 2 or 2 and a half weeks tops doing maybe a pad a day 2 tops. But ive been on my period since January 1st and im still on it (now February 1st). Normally id say eh just a long period, however this time i am barely bleeding i basically can go without a pad with no blood stains but whenever i wipe or anythig there is blood. That doesnt bother me or even worry me what is bugging me is that i am getting really clammy almost 24/7  and have the chills allot, and i get dizzy. My appetite is gone (but im still eating saltines and protien shakes etc).