DD has just turned 3 and is a beautiful blonde, mostly happy and healthy little girl who has just starting potty training
She has never been a good sleeper but has recently improved for no reason we can see (which is frustrating but not complaining!)
We have taken her to the drs intermittently as she is subject to screaming fits, pulling her knees up to her tummy like a colicky baby (which she wasn't), but noone has ever taken us particularly seriously or offered anything useful. We are now seeing a more obvious pattern of an hour of screaming and farting about 4hrs after we eat - normally between 9-10pm after 5pm tea. This leaves us reasonably confident that she has some kind of minor food sensitivity/intolerance but we are struggling to find any logic as to what causes the upsets - frubes are fine but the Aldi equivalent 'tube its' are not. Some chocolate puddings are guilty, and we had a different brand of shop bought pizza than usual which set her off - is a colouring a likely cause?
We tried her on soya milk when she was still having bottles at bedtime and it didn't make a noticeable difference.
She has always been a big drinker (water, milk, weak dilute juice), and we had her urine dipped for glucose as I was concerned about diabetes (my side of the family :() but she came up clear :)
She is a big protein eater, and not particularly fussy, but would happily live on choc spread sandwiches
if she could, but I don't think this makes her unique among 3yr olds 
I would have posted this in allergies but it seems so minor compared to the food hoops some mums are managing to jump through. Its still horrible, though, feeling so helpless to comfort her or relieve the pain, even though we're starting to recognise the pattern now and realise its fairly temporary nature
Any advice/experience welcome
TIA