Should I tell a girlfriend I slept with prostitutes?

So I'm trying to hit the dating scene, I've never had a girlfriend and never even been on a date now M25 and about 6y ago I lost my virginity to a prostitute and have visited about 5 prostitutes, but since then i have changed my life alot.

I am not even remotely the same person I was, I was 200+kg, my head was full of bad thoughts about myself, I hated my self and my life and I quite literally thought I would never be loved and therefore thought the only way I would ever get laid was to see prostitutes. Now 6 years on I flipped my attitude due to a fear of dying. I now have lost 50% of that weight and feel good about myself, I severely regret my decisions and hate what I did and will never go back to that life.

So like what do I say, I know that a girl at some point is going to ask "have you been with anyone before?" And like wtf do I say to that, yeah I've been with 5 prostitutes????