You poor thing, my son has never had to go through anything quite so bad. I was worried at one stage and rang the 24 hour help line to ask, I was just being a bit paranoid. You haven't said if you breast or bottle feed? That's what my prob was, it is apparently quite normal for no poo for a couple of days if breastfed and nothing to worry about.
I find if I pack the scoop for the formula too tight, that my son gets problems, you just need to skim it off the top. I always add just a little (teency bit) extra water than I am supposed to and his poos come out nice and easy.
My MIL helped me one day, she used to roll up a warm & damp face washer and place it on the babies lower backs and lower tummies and then just give a nice gentle rub.
I also try different combinations of ingredients in my solids. A great recipe book I found is a little book Health for Life baby and toddler by jody vassallo, as with all books there are some weird ideas and great ideas, use your own judgement, but EJ has no troubles with the foods I make him from this book.
Hope everything gets better for you soon.
Jennifer 14.04.98, Eric 25.02.04, Gabriel 25.07.05