3dpo help

No I don’t normally feel like this I know it’s nearly impossible to be pregnancy symptoms but than I googled and there are a few girls that have.... so I threw up 2 days ago yesterday I almost threw up and I have two tall tell ways to know I am pregnant one nicotine.(smoking when I got pregnant with my son I now chew!!!) so I had a dip and I got super dizzy and nauseous feeling!!! And then I chugged a cold glass of water and I threw up!!!!!! These are not normal and I have not been around anyone that is sick or has been sick and I don’t feel sick please tell me I am not insane