Brief Answer:
Attributed to irritation of Diaphragm
Detailed Answer:
Hello,
Thanks for your query.
The symptoms as mentioned in your post can be attributed to irritation of Diaphragm, secondary to the viral infection.
Phrenic nerve is the nerve supplying the diaphragm, which helps in respiration.
Due to the viral infection, presence of fluid or focus of infection in the
pleura, there is irritation of Diaphragm during continuous bouts of
cough, which gets referred to the back & neck as nerve pains (the symptoms as mentioned in your post)
Investigation like
X ray of the chest will be helpful in clinching the diagnosis.
Based upon that, further management steps could be taken.
So, it will be better to consult your treating Doctor & discuss regarding this.
Till then, maintain adequate nutrition & hydration status and continue your medications.
There is no need to worry, you will be fine.
Please let me know if I need to clarify further.
Wishing you a good health.
Take care.