Am I grey-ace?

Hi, I'd like to know what you think about whether or not I'm grey-ace. I've been thinking about it lately because I've felt little to no sexual attraction for a long time. I spent almost 8 years without any kind of relationship, and I currently have a partner (wlw).

My relationship is good, but lately I've realized that I don't really feel sexual attraction, or sometimes it's very minimal and only for short periods of time. I don't mind having sex with her since I'm the one in control, but when the roles are reversed, it feels quite uncomfortable, I can't concentrate, and I'd rather just have it end.

I'd like to know what you think about this. Could I be on this spectrum? Or could other external or mental factors be the reason why I can't concentrate or enjoy those moments?