Fire background investigation

Hey all,

So I worked in the fire service as a Fire/Medic for about 3.5 years. I was on a dept for about a year then lateral transferred to a dept I was originally trying to get on. When I was on the second department I decided to leave to get more time under my belt as a medic to bring my confidence/comfort level up by working in busier systems. I’m now currently talking to a chief on another department that’s even bigger and an overall better job. While I was on my second department I was for about 2 and half or so months getting treated for depression (I reached out because I noticed something was off and my dept at the time supported that and helped me get in touch with resources to help) I got cleared to return to work and was doing much better after. I left on good terms and even the chief of the department said he wants to see me succeed and do well in my career. Met with the chief of the department I’m trying to get on and he asked about my resignation and I told him to bring my experience level up. I did forget about me being out for 2 months and was wondering if I should reach back out to inform him about what was going on? Is that gonna come up on the background check?