Back n forth

I’ve been seeing someone for almost 3 months and he is a really great guy. I’m starting to think something is wrong with me though. We get along great and have great communication but I feel we are incompatible in some big ways. Regardless of how small it seems to me as I have verbalized these outlooks to him, he doesn’t think they’re all that major and will more or less try to smooth my concerns. Regardless these things keep cropping up and they bother me. When he looks at me and holds me it’s like nothing I’ve ever experienced before. I do love him but idk why I keep feeling hot one minute then cold the next about him. It’s gotten to a point to where it’s effecting my emotional state. Ups and downs and highs then lows almost on the regular and I feel it’s all stemming from him but can’t help but wonder if I’m crazy.