I've been experiencing a burning muscle feeling localized around my lower abdomen. Taking Motrin or anything does nothing. It's uncomfortable but it tends to lessen when I do something. My mom used to be a massage therapist and says my stomach feels (when im relaxing it) like I've just done a ton of sit ups and that it's ridiculously tight. There is no stabbing, shooting pain, just this kind of crampy burning muscle feeling and slight constipation which I wonder is also from tiht muscles?