Is it normal to have mild pains / discomfort in your belly at 18 weeks? I have had round ligament pain previously, but this feels different. The round ligament pain was below and towards my groin and at the sides. The current pain is on the main part of my belly, and mainly noticeable on my left hand side of centre. So about 2-3 inches to the left (my left) of my belly button and sort of going up and down from there. I'm not in massive pain, it's uncomfortable and I can't find a comfy seating position. The pain is mild but very noticeable. It's not constipation as that's all working fine(!) It feels similar to if you ate an absolutely huge meal and felt stomach pains. A bit like my tummy is under pressure.
Is this normal/ something others have experienced?