Winston is eight years old and 3lbs, he is constantly sleeping and doesnt play with any of his toys or me. He always wants to cuddle or sleep. Every time I come home, when he lays on my lap, or when we are in bed he does'nt stop licking me!! He will just keep licking for like 5 mins if i dont stop him, and I feel bad pushing him away or putting him down! I don't under stand????!??!? I can remember him always being like this since I have had him ( when he was 3 ) but in the last couple months this has all gotten worse

could anyone give me any advice, or ever had a simular problem?!?! I am concered.
THANK YOU!!!!!