Period??

Takera
I got off the Depo back in April and had my first period in August and another the following month it's October and I've been experiencing cramps, nauseousness, leg numbness (not severe), breaststroke tenderness, back aches, fatigue and a lot of bloating. Sometimes I feel flutters in my stomach so I'm assuming that's just gas though but the thing is I'm not having a full period, I'm spotting more than it just being a light period. Also the blood is darker than it usually be. Should I be concerned or is my body just trying to get back to normal after being on BC for so long?