 [ Symptoms ] does heart burn cause increased heart rate  i get this feeling of a burning sensation that starts in the top of my stomach and then cause my heart to pound and increase to 135 beats per min i then feel nauseous and get some anxiety [ Disease ] yes that is definitely possible if your nine year old now 11  is showing other signs of maturation breast formation public hair etc  the menses can start at any time at first the menses may not be consistent or monthly