hi all

I haven't posted here before but I'm so desperate I really need advice. My son is 4 weeks old and he is suffering from bad wind/tummy pains. When he's awake he is constanly straining,grunting and groaning, like he's trying to push out a poo. Usually he may push out some wind or a smal bowel motion. His poos are normal looking but he NEVER does BIG explosive ones.

I have tried Infant's friend, Infacol and boiled water. These all workd well to bring up wind after a feed but it doesn't stop the straining. I am slowly going mad because he is constantly waking himself by pulling up his legs and grunting til he cries. I have also tried the bicycle legs, massage, warm baths and walking the floor bouncing him about.
Is this just a normal digestive problem in newborns or could this possibly be a more serious issue.

Please help, I have been given more than enough advice from the MIL ( including 'structured feeding) and need some 'real' advice