Bro,

drink enough WATER!!

reading this thread overall, somehow i feel that you should "improve" your diet. If i remember correctly, you've stated you eat cornflakes for breakfast and now it's peanut butter on bread.

Apart from taking all those commercial fibres for your constipation, why not try changing your overall diet to include more things that will help your constipation and overall health? eg oats & fruit for breakfast? no or reduce coffee etc