u/MiniMarshamallow

Should I be concerned about this? It hasn't changed or gotten any bigger and the cornacing and ceiling above are fine. Will I be able to open it and fill flex or should I get someone out to look at it. Feeling a bit overwhelmed with all this but its an old flat

I've just moved into a flat and this one bit of the hall ceiling is annoying me. There are some small cracks in the cornacing which I'm prepared to try sort myself but I don't know what to do about this (apologies newbie to all this). Could I just get the ceiling skimmed as its a little patchy round the spotlights as well but otherwise the rest seems fine. What are my options?