I'm an amateur writer, writing almost entirely fanfiction, and I use the word 'yea' in my writings rather often instead of yeah. In sentences like "If you mean did that just happen? Yea." or "Yea... I'm gonna need another cup of coffee before dealing with this."
I know that originally Yea was the opposite of Nay but more and more I'm seeing people use it in place of Yeah, dropping the h. Is that becoming the correct way, an acceptable way, of saying it or am I just mistaken?