hi i have try bath salt by snorting it all day long like five lines of it and my heart i think its messing up like it hurts when i try to breath all the way . like  i have a hurt mumer and its  not that bad but every once in awhile i get. sharp pains like my heart is having  a heart attack and will this is how i fill constantly.  like my chest fills cave in  so am im going to die soon from it even if i stop all the way..
You should not worry much just have an appointment with any doctor and ask him to listen to your heart. Moreover most of the murmurs are not fatal so no need to panic, but you can consider it important to get yourself evaluated soon as a part of routine medical check up