Thanks for your question on Health Care Magic.
I can understand your concern.
At your age of 26 years,
heart failure is unlikely.
But we should first rule out
arrhythmia (rhythm disturbances in heart) in your case because it can cause palpitations and left arm tingling sensations in young patients.
So
consult cardiologist and get done ecg, 2d echo and Holter monitoring (24 hour continuous monitoring of ecg).
If all these are normal then no need to worry for arrhythmia.
Sometimes stress and anxiety can also cause similar symptoms.
So avoid stress and tension. Be relax and calm.
Consult psychiatrist and get done
counselling sessions.
You may need anxiolytic drugs too.
Don't worry, you will be alright but first rule out arrhythmia.
No need to worry for heart failure.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.