I'm a PCOS sufferer and my PMS symptoms include everything you say you feel and they would start from 10-7 days before a period. I would be so nausiated that i would vomit almost daily, i was irritatable and i bloat horribley before a period also. My boobs would also get a little sore and i would feel dizzy and have headaches. All things that i used to think were pregnancy symptoms. The only difference i see between PMS and pregnancy is the cramping is different and im much more tired.

While 10 DPO isn't SUPER early to test as i got my BFP with my DD at that time it wouldn't really make sense if you have been feeling the way you have before O-ing.

Otherwise the only thing i can think of is maybe you O-ed earlier an you could very well be pregnant. Can't hurt to do a test now.
This sounds terrible! I used to vomit and faint the first day of AF but I never get symptoms prior it just hits me all in one day usually. Don't really know it's coming other than a bit of bloating. I can understand how the symptoms can be very confusing when they cross over. I guess we will just have to wait and see.