low back pain suggestions and treatment?

Yes, stress can cause heart palpitations because when you are stressed, your body releases a hormone called adrenaline which makes your heart beat faster. But, it could be something else too like too much caffeine or alcohol, certain medications, asthma inhalers, dehydration and other health issues.....

Viral fever duration for most viral infections is 3-5 days , in few cases it may take 14 days

has the pediatrician advised nebulizer? what medicine are you giving in the nebulizer? if there any fever along with cough and cold? this is mostly because of season change and newborns are prone to upper respiratory born infections a lot.