Strange sensations all day today. Stomach pulls when walking, but not…

Strange sensations all day today. Stomach pulls when walking, but not too much, maybe some tension... When I sit down it's uncomfortable in the lower area, and lying on my side - stomach hurts on both sides, like stretching (it passes after a couple of minutes) and discomfort in the pubic area ? light tingling and feeling of fullness, lying flat - everything is fine.. What could this be? Are ligaments pulling?