I have sinus prob and went to my general md tues this week. He gave me a steroid shot and antibiotics that were sulfate based and gave me bad stomach issues. Went and saw my allergy doc today (thurs) and he changed the antibiotic to cefdinir and gave me another steroid shot due to the swelling. I woke up feeling tense and can t sleep now. I do have acid reflux and take zegrid but took it two hours after the antibiotic as instructed. Is sleeplessness and this tense feeling normal from the shots and cefdinir?