Talk to General Physician on Sleeping Problem/sleep Disorder

Hi everyone,, I was suffering from fever 15 days ago,, i took antibiotics as prescribed by doctor,, Now em unable to sleep properly,, my brain doesn't sleep all night from 8,9 days.. i hardly sleep for 3, 4 hours but not as good sleep,, Now doctor prescribed me prothiaden 25 mg 1 and lexotanil half tablet.. He told me this is anxiety,, plz help me in this case.. Should i take these medicines? or any other remedy? thnx