Should I (32M) tell her (31F) about my medical issue or keep it to myself?

Just a warning - this is a bit too much information.

I have had a medical issue my whole life where I don’t feel any sexual pleasure. Everything still functions like it is supposed to and I think I should still be able to have sex AFAIK (I’ve never tried though).

Recently I decided to try dating for the first time. I have been seeing someone for a month or so and it’s been going well. We have not been physical but I’m just hoping to be prepared if it does come up.

I’m really unsure whether or not I should tell her about my medical issue. Is it just too much to be talking about this early on? Or is it best that she knows? I really don’t know.