I don't like kissing my gf

I (35m) and my gf (35f) have been dating for almost a year and I find myself annoyed whenever she kisses me. she's very affectionate and always needs to be touching, kissing, holding my hand, etc.

I'm very uncomfortable with PDA including hand-holding and such but I mostly just put up with it. but she constantly needs physical attention and I find it frankly annoying.

every other aspect of our relationship is great. she's kind, smart, funny, beautiful, etc. but I find myself so annoyed all the time around her.. is this normal?

*for context, this is my longest relationship - I've been largely single/ hookups/ situationships for my entire life....