My ds is just over 7mths old. He is very unsettled when on the floor, Ive tried changing his position, changing his activity, playing with him, taking him outside etc. Im worried that he doesnt have a lot of opportunity to practice moving, he spends about 20 minutes a day on the floor in various positions in 5 minute bursts before he gets really upset. Is this enough or should I let him cry a bit longer? I do excercises with him on my knee (row row your boat, standing him up, playing bicycle with his legs etc to give him some physical activity while he is settled but am worried that he wont ever be happy to play and explore on the floor.