Medications you have mentioned here are for controlling BP and cholesterol
You have not mentioned your BP reading
As per your age and weight your BMI is >30 which categorise you in obese class 1
Good to know your ECG echo and cag are normal
If your doctor has suggested that to substitute metolar xr 50 in place of nebi 5 then you can use it.
You don't do it yourself.Both are betablockers but
Nebi5 is once a day medicine .
Next Steps
consult with your doctor to substitute the medicine
Health Tips
reduce your weight
diet modification
exercise for 30 minutes 5 days in a week