Hello. My baby is 3 months and healthy, but I worry that I never put in on his tummy enough. Now when I do he is fuzzy and get panicky because he doesn t know how to relax his head and thinks he needs to hold it up all the time. Also he has been sitting a lot in his baby bjorn bouncy chair since he was 6 weeks. I do have a flat pram though andhe is sleeping in a flat cot half the night and rest of the night in my bed. I am worried that he has been sitting to much in his bouncy chair instead of lying on his tummy. Can this affect his spine?