HI, thanks for using healthcare magic
The fluttering sensation may be
neuralgia (nerve related pain) or palpitations.
Neuralgia is pain caused by abnormal structure or function of a nerve. There are different causes such as diabetes, trauma,
vitamin b12 deficiency, ms, alcohol use, exposure to toxins, side effect of medication.
Palpitations are abnormal heart rhythm , there may be a change in the rate or rhythm of the heart beat.
There are also a large number of causes for palpitations. Some of the causes include anemia,
thyroid disease, side effect of medication, excess caffeine use,
heart disease (for example
enlarged heart), abnormal electrolytes.
The treatment would vary depending on the exact reason for the fluttering sensation.
This would require physical assessment by a doctor.
I hope this helps