My sugar level is 119 before eating. Is it normal?
It is slightly elevated you fall under prediabetes.
No, In general anything above 140mg/dl needs medicinal intervention and if your blood sugar level is 105 then it is not bad.
In general anything above 140mg/dl needs medicinal intervention and if your blood sugar level is 154 despite medicines then it is bad.
Over time, your heart your kidneys and your eyes will get damaged so its better to take control of blood gluocose levels.
240mg/dl is the highest which can be lowered by giving medicines. Any value higher than this is absolutely unsafe and has to be reported to a doctor immediately.