walls cavity insulation

I wonder if someone can help me? My 1970 property was fitted with cavity insulation which it shouldn’t have. I was getting large damp areas so had it removed last year. Recently I’ve noticed I’m getting random damp patches in my property. Above 1st floor skirting boards, random “blobs” below...

Good morning all, I have a third-floor Victorian flat (circa. 1900) and I have always assumed that it had solid walls, however the walls are 15.5" thick. The brick pattern doesn't help as the wall is so thick you would expect to see the ends of the bricks as well as sides, see below...