Should I tell her I have a crush on her?

So there's girl we were course mates in 100level, we were given a group project and fortunately we were in the same group and i kind of fell for her when we glanced at ourselves and she waved me😂
Fast forward I never did speak with her a lot but we were always in like the same group in things we only waved and said hi to ourselves but in some practical classes we kind of just talked about our work and all... I feel we had a thing cause we always like had this eye contact of a thing but I wouldn't say I'm totally sure the feelings were mutual but that was that. I really liked her which made me shy that's why I didn't really talk to her about things whenever I saw her I had move away just didn't want to be around her cause I was always uncomfortable due to the fact that I was shy and I think there were times she wanted to talk with me and then I would just shy away, getting her number was a problem she had to message me about some project and all
Well I've left the school now and I still like her badly even though I speak with other girls interested in me
Whenever she posts anything about herself the feelings hits me crazily like I been simping over her, this isn't normal it's never happened to me and I don't want to speak with her cause I don't know how I had handle a rejection coupled with the fact that we ni more in the same school
Well that's it should I say something to her about it or not
Should I tell her I have a crush on her?
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