emgee, if you are a qualified teacher with valid certification in your country of residence and have taught English, you can call yourself an English teacher for the purposes of these forums. You may subsequently resume teaching; people come out of retirement all the time.
The situation with my certification and country of residence is a bit complicated. I am a certificated teacher of English but only in Poland. Now I live in the UK and I guess the paperwork I own wouldn't allow me to teach English here. For simplicity's sake, I think I'll stick with the term 'retired'.
I have to say that your answers are consistently of a good standard, unlike those of occasional responders who purport to be English teachers but whose credentials are distinctly suspect. Fortunately, such contributors don't last long.