My 17 teen y/o symptoms: less bm upper left soft abdominal lump constipation white tongue/mild coated tongue heart palpitations slightly bloated !?

Needs to be seen: Nobody here can do a thing with this mix of symptoms / signs. Plenty of teens are constipated -- most often it's from not drinking enough water. Plenty of teens have crud on their tongues -- dental floss may be all that's needed to remove it, and it usually means nothing. A majority of teens have some palpitations. If junior has an abdominal mass, a physician needs to evaluate it.