PMS Symptoms or??????

I really need an opinion on this please. So my next period is in 10 days and today and part of yesterday I have been feeling tiny achey sensations in my lower abdomen/pelvic area (nothing too bad or painful just tiny aching). I have also been passing wind a few times today and having some minor twinges in my private area. Along with that my boobs are not tender or in pain but they feel tingly at times but they aren't tender really if that makes sense and then i have some discharging as well (from downstairs, not my boobs). I was just wondering are these just signs of my period coming on? PMS 10 days before, is that normal?. I would really appreciate the help, im curious as to what this is also bc i am a virgin and im 17 so just wondering? (No type of sexual encounters in my life)