Is it normal to feel this way while liking someone?

So recently about 2 weeks ago, I met this boy. He's my age 17** and he and I are so similar to each other. I haven't seen him after those 2 weeks but we have been talking a lot lately and everytime we talk I have small feelings but then I have like a huge burden on my chest. I don't know, but is like I'm scared. I've only had one relationship in my life and it was an abusive one and I'm SOOO scared if something like my first relationship will happen again. From what I know I don't want to rush anything, but from what I have gotten so far is that he is very kind... but I'm not sure if I feel 100% I like him. He likes me and he's even said so and I want to too but I don't know how I actually feel. I feel excited then scared, and then nervous. But I can't stand the idea of losing him. Can someone help me stop being a little baby 😭😭