MM, are you saying that the soya milk your lo is on hasn't helped? Or has it helped, just not a lot? Apparently there's little to choose between infasoy and wysoy, they're just different brands.
Meanwhile ds has been acting very strangely since he got his first taste of soya milk yesterday. Firstly he loves the stuff, he ate way more than he normally would, culminating in a feeding frenzy between 10pm and midnight. He then appeared to be buzzing like someone had given him speed, he wouldn't sleep even though he was very tired. Then at midnight after 20 minutes of intensive cuddling he fell asleep in his cot and slept until 7.30am. He's never slept through the night before, and he never needs a cuddle to persuade him to sleep in his cot, which he usually loves.
As for the straining, the jury's still out. He's straining less (the early morning session didn't happen this morning), although as I type this he's just done a big strain . I suppose the real proof will come with his next poo.
There are two reasons why the med. profs. don't help us. One is that no-one knows much about babies, I have been told that if they eat, sleep, poo and wee there's nothing to worry about. The second is that the NHS is stretched to breaking point. There are many (myself included) who believe it's already broken. Tests, time and prescriptions all cost the NHS money, which they don't have. Take comfort in the fact that if there was something very very wrong with your son then the top private paediatricians would be called in and would be eager to solve the problem, if only for their own kudos.
The only way to deal with the NHS is to push and push until they get it right, self diagnose as far as you can and never walk away with an answer that doesn't satisfy you. Oh and remember not to shout at the staff (it only makes them crankier and it genuinely isn't their fault most of the time). It may seem extreme, but I was misdiagnosed and then operated on incorrectly in an NHS hospital less than 18 months ago, it's made me much more aggressive in my dealings with drs.
And that's my rant for the day