Hi doctor..i am 18years old.And i having constipation problem..and my lips also always dry..Even i always drink water,eat fruits,i also suffer from constipation.And i always cannot eat foods which is fried like macdonald,fried noodles and also chocolate,because once i eat these foods,i will feel that there will be some sort of gas which is bitter taste in my mouth which really cause not comfortable and lastly i will end up with sore throat and fever.I also easily get phlygem after i have ate something.Can you please help me doctor?