I've been taking YAZ for five days now and I've been sick to my stomach since last night. I can't decide if this is caused by a stomach bug or YAZ. If this was because of the YAZ would the nausea only occur after taking the pill or would it be continuous? Because i haven't even taken a pill today and I'm still sick to my stomach. Also would I already be feeling these symptoms after only 4 days of being on the pill?