An edit: it was motor oil that he threw all over my car. 

 I have really bad anxiety and OCD, and when something upsets me I can’t stop thinking about it. 

I was turning left from a main road today and was pulling out into a lane that had someone heading my way. I wouldn’t have pulled out in front of someone if I didn’t think I had plenty of time to make the turn, but this person was going a lot faster than they should have been and did not plan on slowing down. He flipped me off and I returned the favor (I know that was really stupid, I regret doing it.) I went ahead and pulled into the place I was headed (a little food place with a drive through)  I didn’t see him follow me, but soon enough he had pulled up beside me and was out of his vehicle.. he kept pounding on my window and was cursing at me and doing lots of name calling.. I reacted poorly, I cracked my window and yelled back. I said “are you really going to f***ing fight with me right now? go away” and I waved him off. I rolled my window back up and he got back into his car. I thought he was done but he threw a bunch of cups of what I’m hoping is water onto my car. I’m not about to claim that I’m the best driver in the world or that I did nothing wrong, I definitely shouldn’t have flipped him off. But my brain won’t let me stop obsessing over this. I reacted angrily, but I was genuinely really scared. I’m embarrassed, but I’ve spent the better part of my night tensed up and shaking. I just want to stop thinking about it! I feel like it’s all my fault

on another note, I live in a very small town and I’m scared whoever this guy was will recognize my car some other time that I’m out and about.. I’m sure that’s probably sounds dumb to worry about but he  really did freak me out