Possible signs and symptoms you are suffering from long COVID
Breathlessness or difficulty breathing is counted to be a serious COVID-19 symptom, and chances are, for patients who had some level of lung involvement during their COVID-19 infection (a common manifestation of the Delta variant), it can take a while for the respiratory organ to fully heal, and thus, symptoms like breathlessness, chest pain, shortness of breath could continue for a while.
Persistent coughing, a change in the voice could also be experienced if you had heavy inflammation in the upper respiratory tract.
While patients should focus on restoring lung function and not over-stress themselves, one must also do breathing exercises and do slow-paced activities for a while, if the symptoms continue to strike. Some might also require oxygen support for a while to recover well. Soothing drinks and concoctions also certainly help.