Smell aversions part of PMS?

I should be starting my period any day now. pregnancy is not a possibility because I haven't been sexually active in 6 months. I've never had smell aversions before and they just started a few days ago. I love spicy food more than anything, but my sister had jalapeños in whatever she was eating and I had to leave the room because I thought I was going to puke. Same thing happened the other day with some chicken fried rice, which is my favorite Chinese food.

I've also been more hungry than ever. Along with dizzy spells and nausea.

I know it's probably PMS but these are symptoms I've never had before. Anyone know what's up with this? Thanks.