my 4 month old dd was able to settle her self when placed in her cot. she is breastfed but has a bath and then a ff in the evening at 6pm. this has worked well for about 6 weeks. she has now decided that she does not want to be alone in her cot and cries until i pick her up. have tried controled crying but not made any progress. could it be teething or may be she needs to start on solids. any help would be appreciated.