HELP://

Hi ladies! I need some advice because I think I am just being paranoid. Lately, I have been feeling nauseous, extremely bloated, dizzy and have kinda had loose stools. I keep getting burning sensations in my stomach (maybe I am allergic to something?). The first thing that comes to mind is pregnancy, which seems really unlikely. I have been on the birth control pill for over 4 years now and I have also just had my period 2 weeks ago when I was supposed to get it. I dont know why I am being so paranoid, but I just need some advice or opinions?

Edit: test showed negative a few days ago but I’m freaking myself out by reading stories about people getting pregnant on birth control (I take mine perfectly), and stories about people getting their periods and still being pregs. Making my anxiety so bad