Yes I got gains from them m8, just the same as any other dbol. Like redz stated, your only 4 days in. Make sure you drink plenty of water and eat well and all will be good
and it sounds as though you are getting the back pumps that is common with dbol, and the burning when you lift will be your muscles getting pumped up but I honestly couldnt say about your neck pain though, I've never experienced that b4.