Lower left abdominal pain

Blair

So Friday I started having really awful left lower abdominal pain, it went across the bottom part of my stomach and to my back. It was almost unbearable at moments. I thought maybe it was gas trapped so I was up and down all night and the pain went on until the next morning. All day Saturday it was sore to the touch, and then Sunday and Monday it was gone, well until last night when it came back. I was up and down all night, had the chills and actually ended up having diarrhea and throwing up yellow bile...not sure if this is all linked but has anyone experienced this? Headed to a check up today thankfully so will for sure be bringing it up. I have a 2 year old and the pain is really restricting me with him.