Feeling kicks in tummy

Hello.. I am 10 months postpartum. Recently, I've been feeling what feels like kicks from my tummy. I know it sounds bizarre as if I am probably imagining gas to be similar feeling when I was pregnant. I took 3 pregnancy tests which are negative and I been having my period past 2 months. So... The kick like feeling so I am just brushing it off as gas.... But is this normal to be feeling like this? Maybe I miss being pregnant that my brain associates gases for kicks. Im so weirded out by this lol..it feels so real I scare myself sometimes