Sex questions.

So I’ve been single for 4 nearly 5 years now and I haven’t had sex for the same length of time as I am a single mum. Every time I masturbate and orgasm(clitoral) I don’t really moan. I don’t see the point sometimes I let out a sigh but never moan. When I had sex before I got pregnant I was never a loud moaner. If I got with someone again do you think it’s wise to let them know this beforehand so they don’t think I’m not enjoying it?Thanks.