Need advice ASAP freaking out!!

Melissa

So I’m sure this is tmi but I’m a ftm and I had my baby six weeks ago and I’ve had my period for about 8 days now. I wouldn’t be freaking out about it but all day I’ve been feeling lightheaded and no energy. Is this normal? The long periods I meant. And I’m both breastfeeding and doing formula. Should I go see a doctor??