Fed up

Since having miscarriage 3 weeks ago I've had awful nightmares (but weird dreams when I was pregnant threw me too) & anxiety about work and life in general which isn't really me. My tummy is big & hurts at night and I'm really fed up now. I don't know what normal is as I thought I could enjoy having a family but now I'm not sure I'd want one anyway as it's another thing to cope with all stress at work, working 12-14 hour days and at weekends after miscarriage to catch up :(