Hi, thanks for the query to H.C.M.
Your's blood test
, TMT, X rays all are normal.
Due to stretching sometimes there is rupture of muscles fiber and we call them sprain
, same thing happened in your case.
Co-incidence was that there were cough & cold so these two things intermingled.
As both were related to each other due to same area hence question of disease arises but things were normal.
One was sports injury
, other was common cold
Now take a rest 3-4 days and resume your exercise.
Good luck. Dr. HET