Feeling movement

So before I say anything, I’m definitely not pregnant, I finished my period last Wednesday and it was heavy as usual.

The last two days I’ve been feeling movement in my stomach, what I imagine a kicking baby would feel like, and I’ve been able to watch the movement.

My stomach has also swelled (like bloating but I don’t feel bloated) to the point I look 4 months pregnant but it comes and goes. I also don’t feel sick or unwell in anyway. I’m just concerned.

Anyone know what this could be?