Feeling weird

My period was three days late this month. I knew something was off cause I hadn’t had my Normal monthly symptoms. I usually get really bloated, tired and irritable, my back usually kills me and I be craving candy. When my period came I got bloated and had cramps like normal. I bleed like I usually do and stayed on for four days. On day three I was cooking and got a wave of nausea and ran and threw up. That was very weird. Ever since then I have had this constant feeling of nausea. I have been off for a few days now but I’m still bloated. My fatigue is worse and my mood swings are crazy. Im driving my boyfriend insane. I literally am mad at the world all the time now. Oh and I’m super gassy. It’s coming from both ends. I took a pregnancy test the day after my period ended and it say no. So what should I do? I will take another test just don’t know when. I’ve been pregnant before and my symptoms kinda match but my period coming really threw me off.