Nasal and throat congestion. Medicine?

Since 3 years had heavy snoring and sudden waking up without breathe in night.Since 5 weeks I had difficulty swallowing saliva (food no issue).Since last 3 weeks I have breathing difficulty to inhale through nose .No sneezing ,no cold,no cough,no fever.covid 19 tested negative.consulted doctor and done endoscopy.he said only slight block in nose and tonsil hypertrophy in report.but no medication given other than a nasal spray (rhinoprl) for 1 month. My weight is 87.5kg against height of the 176.5cm .So he asked to reduce weight by 10kg and asked to re consult after 3 months. My question is :will it suffice?whether tonsil requires any medicine?What is the diet i have to follow(iam actually exercising daily but consuming food equally). Endo Report attached.kindly reply.