Just want to know if this is normal after having a baby. I had my first baby on 22/01/20.

I’ve had really bad cramps for the past 3 weeks. My lower back hurts so so bad. I did have an epidural in labour but my back didn’t hurt this bad, it’s gotten so bad I can’t even bend down normally. TMI when I go to poop it honestly feels like I’m in labour again, it’s like diarrhoea is that normal? Every time it comes to dinner time after I eat I get unbearable cramps, it’s gotten so bad on a night I don’t eat dinner because I don’t want the pain. I have done pregnancy tests, 3 of them came back inconclusive and 1 came back positive but really really faintly. So I did another 2 tests the other day and came back negative. TMI again I’m constantly feeling nauseous and I’m sick in my mouth nearly 2-3 times a day. Earlier today I thought I was coming on but it’s just bloody/brown mucus every time I wipe. I did stop bleeding when my boy was 10 weeks old. I also got the implant when Zachary (my little boy) was 2 weeks old. I also get mood swings like there’s no tomorrow.

Thank you ladies in advance. Xx