Both loving and absolutely dreading my new job.

I started working part time at a local grocery store when I was in high school, then I went away to college, but didn’t really find «my thing», so I returned home and started working full time for that same grocery store, so basically I’ve worked there for about 11 years, but last month I resigned. I used to like working there, but the working environment became really toxic the last couple of years, and so I finally just had enough. Now I’m at a new job, it‘s basically the same thing because now I work for a rival grocery store, and I‘ve previously worked with some of my new colleagues before, which made the transition a bit easier (because I usually really dread meeting new people and having to make a good impression on them and getting to know them), but now I’m really struggling with my emotion regarding my new job. When I’m working I’m enjoying it a lot more than I did my previous job, and I feel like I get along surprisingly well with my coworker, so for the most part I feel really good when I’m at work, but as soon as I get back home I start dreading going back. I’m not talking about just not wanting to think about work, I actually get physically sick at the thought of having to go back, I get nauseous and feel like I have to throw up, and just the thought of going back makes me wanna cry, does anybody else ever feel like this?