In March Sugar dtctd 126 n now 162fastin

My mom is 63 years old with overweight 104 kg and height is 160 CMS. She is know asthmatic since last 30 years but still on initial stage of Asthama as she take good care of herself Her right knee have done TKR in 2015 Recently she came a shock by knowing her blood sugar levels are high Hb1AC was 7.1 and today's fasting sugar on home machine was 162 earlier 3 weeks before it was 126 she is on Glycomet 500 now But she is very depressed and thinking too much on this issue She cannot do any exercise because of overweight and knee replacement she walks and get troubles due to asthama What should be the course of action as she don't want to worsen her health because of high sugars Will the laparoscopic biactric surgery will be fine at this age and with these issues Are there some better medicines for controlling sugars Are these machines of one select give proper results can we rely Please help me in detail requesting your time and efforts plz reply in detail for all my doubts