Weird popping in abdomen when moving weird??

Hi guys so today I noticed this weird feeling in my abdomen and I’m currently freaking out. I was leaning kind of against my bed and then when I went inward, I felt something small shift in my lower left abdomen and then went I went back to my original position, it shifted back. This feeling does not hurt at all or do anything, but I’m j really scared of why it’s happening

haha this happened to me while on zoloft, like if a baby was moving inside me lol. it went away after 2 weeks. its gas from what I saw.