To be honest, we don't give each other anything to be jealous about, so the answer has to be no. We have both been through a lot in our previous relationships and being 'middle aged' have learned to cherrish what we have found in each other. I have never felt more loved, respected and cared for by anyone and I return that love and respect to my partner every day.
I think paranoia is a more common problem in mine and my boyfriends relationship (see a more recent post in b&s by myself!), neither of us actually have anything to be jealous about but we get paranoid we do. It's not really a problem though because we both know how it can feel so just take the time to reassure each other. We've been together four years by the way!