I apprecaite that you are doing efforts to reduce weight. I am sure you will succeed.
Yes , Excessive Caffeine can cause Palpitations and Flushing
But still ,as a protocol , you should be investigated as i have advised.
You are taking a very high , infact highest dose of Enalapril
. You should monitor your Serum Pottasium levels. Also , if you develop persistent dry cough
your doctor , as this drug can cause that too.
Norvosac is acceptable at 5 mg once a day.
You have not mentioned , the range of your blood pressure on these medications.
Also required is your Lipid Profile
to see for any dyslipidemia
You may reply me back , with your blood pressure values and also attach your investigations , if you have any.