My son is 7.5 months and showing slight interest in solids. He excepts smooth a purees mainly fruit but anything veggie and lumpy he doesn't like. When trying lumpy foods he has a strong gag or is sick a little bit. He's not interested in finger food at all! And only excepts food if it's on a spoon. How do I introduce baby lad weaning on a way that doesn't scare me or the baby? And is lack of interest normal at this age?