Objectives: To ascertain the prevalence of stress and anxiety disorder affecting the learning behaviors on Medical students during pandemic of COVID-19, so that strategies to cope would be streamlined. Methodology: This Cross sectional study was carried out at AL-Aleem Medical College, Lahore attached with Gulab Devi Educational Complex, over a period of three months from September 2020 to November 2020 after approval from Institutional Review Board. Non probability convenience sampling technique was used, a total of 150 willing medical students 50 from each class (1st, 2nd and 3rd) were included in this study. The Data was collected by handing over “The 7- item Generalized Anxiety Disorder Scale (GAD-7)” Perfprma, it was entered and then analyzed with SPSS version 23. Results:  Total prevalence of stress and anxiety disorders in medical students was 81%, it was more prevalent in host élite 68.20% and in females 69%, the P-Value between female /male was 0.016 that is statistically significant. The mean age of students was 20.43 years Conclusions: This study highlight the significant level of stress and anxiety disorders in Pakistani Medical Students during COVID-19 Pandemic. To reduce this stress and anxiety special preventive strategies and its implementation are the need of the hour in order to produce seven stars doctors.