Hi Guys, About 4 or 5 days ago I noticed some fleas on my cat (norwegian forest cat - so long-ish? coat, 5kg) and immediately got to investigating and treating it. Over the course of an hour I probably found about 10 fleas on him whilst brushing him with a comb so I gave him the spot on treatment and a flea tablet by Johnsons. I think i noticed flea dirt on and around him since 2 weeks before that day maybe, didn't know what it was back them just moved to a new flat about a month and a half ago so just thought it was normal dirt not flea dirt. I sprayed the entire house with flea and tick spray a few times and on the cat a few times and brushed him over with it. In the coming days after I thought the problem was gone as I couldn't see any dirt on him or fleas. Near his genital area is where I noticed a some dirt as the hair does thin out a little down there and gets curly so it's a little easier and there is no dirt to see there even now. Until last night I investigated closer near his skin throughout his belly which is hard to do with his thick coat - but possible to do under him since he is all white below but dark-ish grey on top so impossible to see any dirt there - and found dirt deposited close to his skin at bottom of his fur. I sprayed him a few times and brushed him to see dirt come off but couldnt find a flea yet. This morning brushed him again and found three fleas. How serious a problem would you guys say the situation is at the moment? I would like to take him to vet but to the obvious eye it doesn't seem that serious to bother a vet with and if so, how much does such a visit / treatment cost?