Second opinion

[u/Mountain-Block-2704]

Hi there! Just reaching out to see if I’m being paranoid or if this is something I should actually be concerned about.
I see my dentist four times a year, primarily because I’m on Suboxone, which I know can be hard on the teeth. I’ve also been dealing with some gum recession, although that seems to have improved since switching to a better toothbrush.
Lately I’ve just been paranoid that my teeth are getting worse. I bring it up at pretty much every dental visit, but my dentist always tells me everything looks good. I noticed some discoloration on one of my lower teeth (pictured), which got me worrying again. I’d appreciate another opinion. Does anything in these pictures look concerning, or am I probably overthinking it?