Frustrated

So I’ve had weird cravings, been emotional lately and horny as hell. I am only 8-9 days dpo and my period starts on the 17th. I’ve been feeling super different and tired. I am really skinny and weight like 119 and I have a super flat stomach but last night my SO pointed out that I have a weirdly kinda bloated round belly now. I know it would be way to soon to have a belly but I know bloating is normal and can shape like a pregnancy belly while preparing for baby and it’s not like I have period symptoms yet so not period bloating. The top pic is normal and the bottom is sucking in. Any advice or thoughts on what to do ? I’ve also been diagnosed with pcos but they are now thinking it’s endometriosis. Please help.