Hi.
Usually the medicines take 10-15 days to show their results while the side effects start early in treatment, most of them however settle by themselves within a week.
If you are feeling more energy and unable to sleep, first thing is to take Flunil in morning after breakfast. Practice sleep hygiene techniques for better sleep along with it.
Taking psychotherapy along with medicines also helps in keeping the dose to minimum.
If the side effects persist even after 2 weeks, consult with your doctor again for review of medicines.
Next Steps
wait and watch, shift dose to morning if not already done.