What could be going on??

So, over the past month... my sense of smell has been like in overdrive. EVERYTHING has a strong smell. And sometimes it even makes me feel ill. Not to mention, I’m having way more nausea than normal. (I have no gallbladder so anything I eat almost makes me sick almost every time...) my boobs are like KILLING me. (Sorry I’m sure that’s TMI...) I’m craving salty stuff... I don’t even LIKE salt like that. But I’m craving it for whatever reason. I just started my period, so idk if pregnancy is possible. I mean I had what I thought was a faint positive the other day, then had a negative test yesterday... so idk. I’m so confused. 🥺 any ideas????